CVE-2022-26365

Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740). Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742).

The Linux Kernel, the operating system core itself.

Security Fix(es):

There are use-after-free vulnerabilities caused by timer handler in net/rose/rose_timer.c of linux that allow attackers to crash linux kernel without any privileges.(CVE-2022-2318)

An issue was discovered in the Linux kernel through 5.18.9. A type confusion bug in nft_set_elem_init (leading to a buffer overflow) could be used by a local attacker to escalate privileges, a different vulnerability than CVE-2022-32250. (The attacker can obtain root access, but must start with an unprivileged user namespace to obtain CAP_NET_ADMIN access.) This can be fixed in nft_setelem_parse_data in net/netfilter/nf_tables_api.c.(CVE-2022-34918)

Arm guests can cause Dom0 DoS via PV devices When mapping pages of guests on Arm, dom0 is using an rbtree to keep track of the foreign mappings. Updating of that rbtree is not always done completely with the related lock held, resulting in a small race window, which can be used by unprivileged guests via PV devices to cause inconsistencies of the rbtree. These inconsistencies can lead to Denial of Service (DoS) of dom0, e.g. by causing crashes or the inability to perform further mappings of other guests' memory pages.(CVE-2022-33744)

Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740). Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742).(CVE-2022-26365)

Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740). Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742).(CVE-2022-33740)

Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740). Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742).(CVE-2022-33741)

Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740). Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742).(CVE-2022-33742)

network backend may cause Linux netfront to use freed SKBs While adding logic to support XDP (eXpress Data Path), a code label was moved in a way allowing for SKBs having references (pointers) retained for further processing to nevertheless be freed.(CVE-2022-33743)

When setting font with malicous data by ioctl cmd PIO_FONT,kernel will write memory out of bounds.(CVE-2021-33656)

Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740). Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742).

• openvswitch: fix OOB access in reserve_sfa_size() {CVE-2022-2639}
• xen/blkfront: fix leaking data in shared pages {CVE-2022-26365}
• Bluetooth: Fix slab-out-of-bounds read in hci_extended_inquiry_result_evt() {CVE-2020-36386}
• btrfs: only search for left_info if there is no right_info in try_merge_free_space {CVE-2019-19448}
• filldir[64]: remove WARN_ON_ONCE() for bad directory entries {CVE-2019-10220}
• Make filldir64 verify the directory entry filename is valid {CVE-2019-10220}
• ath9k: release allocated buffer if timed out {CVE-2019-19074}
• net: sched: sch_qfq: prevent slab-out-of-bounds in {CVE-2023-31436}
• memstick: r592: Fix UAF bug in r592_remove due to race {CVE-2023-3141}
• wifi: rndis_wlan: Prevent buffer overflow in rndis_query_oid {CVE-2023-23559}
• ext4: fix kernel infoleak via ext4_extent_header {CVE-2022-0850}

• openvswitch: fix OOB access in reserve_sfa_size() {CVE-2022-2639}
• xen/blkfront: fix leaking data in shared pages {CVE-2022-26365}
• Bluetooth: Fix slab-out-of-bounds read in hci_extended_inquiry_result_evt() {CVE-2020-36386}
• btrfs: only search for left_info if there is no right_info in try_merge_free_space {CVE-2019-19448}
• filldir[64]: remove WARN_ON_ONCE() for bad directory entries {CVE-2019-10220}
• Make filldir64 verify the directory entry filename is valid {CVE-2019-10220}
• ath9k: release allocated buffer if timed out {CVE-2019-19074}
• net: sched: sch_qfq: prevent slab-out-of-bounds in {CVE-2023-31436}
• memstick: r592: Fix UAF bug in r592_remove due to race {CVE-2023-3141}
• wifi: rndis_wlan: Prevent buffer overflow in rndis_query_oid {CVE-2023-23559}
• ext4: fix kernel infoleak via ext4_extent_header {CVE-2022-0850}

• openvswitch: fix OOB access in reserve_sfa_size() {CVE-2022-2639}
• xen/blkfront: fix leaking data in shared pages {CVE-2022-26365}
• Bluetooth: Fix slab-out-of-bounds read in hci_extended_inquiry_result_evt() {CVE-2020-36386}
• btrfs: only search for left_info if there is no right_info in try_merge_free_space {CVE-2019-19448}
• filldir[64]: remove WARN_ON_ONCE() for bad directory entries {CVE-2019-10220}
• Make filldir64 verify the directory entry filename is valid {CVE-2019-10220}
• ath9k: release allocated buffer if timed out {CVE-2019-19074}
• net: sched: sch_qfq: prevent slab-out-of-bounds in {CVE-2023-31436}
• memstick: r592: Fix UAF bug in r592_remove due to race {CVE-2023-3141}
• wifi: rndis_wlan: Prevent buffer overflow in rndis_query_oid {CVE-2023-23559}
• ext4: fix kernel infoleak via ext4_extent_header {CVE-2022-0850}

• openvswitch: fix OOB access in reserve_sfa_size() {CVE-2022-2639}
• xen/blkfront: fix leaking data in shared pages {CVE-2022-26365}
• Bluetooth: Fix slab-out-of-bounds read in hci_extended_inquiry_result_evt() {CVE-2020-36386}
• btrfs: only search for left_info if there is no right_info in try_merge_free_space {CVE-2019-19448}
• filldir[64]: remove WARN_ON_ONCE() for bad directory entries {CVE-2019-10220}
• Make filldir64 verify the directory entry filename is valid {CVE-2019-10220}
• ath9k: release allocated buffer if timed out {CVE-2019-19074}
• net: sched: sch_qfq: prevent slab-out-of-bounds in {CVE-2023-31436}
• memstick: r592: Fix UAF bug in r592_remove due to race {CVE-2023-3141}
• wifi: rndis_wlan: Prevent buffer overflow in rndis_query_oid {CVE-2023-23559}
• ext4: fix kernel infoleak via ext4_extent_header {CVE-2022-0850}

• kvm: initialize all of the kvm_debugregs structure before sending it to userspace {CVE-2023-1513}
• wifi: mac80211: fix MBSSID parsing use-after-free {CVE-2022-42719}
• mac80211: always allocate struct ieee802_11_elems {CVE-2022-42719}
• netfilter: nf_tables: initialize registers in nft_do_chain() {CVE-2022-1016}
• xprtrdma: fix incorrect header size calculations {CVE-2022-0812}
• net: usb: fix memory leak in smsc75xx_bind {CVE-2021-47171}
• i2c: i801: Don't generate an interrupt on bus reset {CVE-2021-47153}
• pid: take a reference when initializing cad_pid {CVE-2021-47118}
• Input: appletouch - initialize work before device registration {CVE-2021-46932}
• HID: usbhid: fix info leak in hid_submit_ctrl {CVE-2021-46906}
• quota: check block number when reading the block in quota file {CVE-2021-45868}
• mwifiex: Fix skb_over_panic in mwifiex_usb_recv() {CVE-2021-43976}
• atlantic: Fix OOB read and write in hw_atl_utils_fw_rpc_wait {CVE-2021-43975}
• isdn: cpai: check ctr->cnr to avoid array index out of bound {CVE-2021-43389}
• usb: hso: fix error handling code of hso_create_net_device {CVE-2021-37159}
• can: bcm: fix infoleak in struct bcm_msg_head {CVE-2021-34693}
• dm ioctl: fix out of bounds array access when no devices {CVE-2021-31916}
• KVM: x86: hyper-v: Fix Hyper-V context null-ptr-deref {CVE-2021-30178}
• perf/x86/intel: Fix a crash caused by zero PEBS status {CVE-2021-28971}
• btrfs: fix race when cloning extent buffer during rewind of an old root {CVE-2021-28964}
• ovl: fix missing negative dentry check in ovl_rename() {CVE-2021-20321}
• drm/ttm/nouveau: don't call tt destroy callback on alloc failure. {CVE-2021-20292}
• bpf: Verifer, adjust_scalar_min_max_vals to always call update_reg_bounds() {CVE-2021-4159}
• btrfs: unlock newly allocated extent buffer after error {CVE-2021-4149}
• tracing: Fix bug in rb_per_cpu_empty() that might cause deadloop. {CVE-2021-3679}
• net: mac802154: Fix general protection fault {CVE-2021-3659}
• nfsd4: readdirplus shouldn't return parent of export {CVE-2021-3178}
• Bluetooth: SMP: Fail if remote and local public keys are identical {CVE-2021-0129}
• drm/nouveau: clean up all clients on device removal {CVE-2020-27820}
• drm/nouveau: Add a dedicated mutex for the clients list {CVE-2020-27820}
• drm/nouveau: use drm_dev_unplug() during device removal {CVE-2020-27820}
• Bluetooth: SMP: Fail if remote and local public keys are identical {CVE-2020-26555}
• vsock: Fix memory leak in vsock_connect() {CVE-2022-3629}
• RDMA/core: Don't infoleak GRH fields {CVE-2021-3923}
• xen/netfront: force data bouncing when backend is untrusted {CVE-2022-33741}
• net: Rename and export copy_skb_header
• floppy: use a statically allocated error counter {CVE-2022-1652}
• fuse: fix pipe buffer lifetime for direct_io {CVE-2022-1011}
• aoe: fix the potential use-after-free problem in aoecmd_cfg_pkts {CVE-2024-26898}
• smb: client: fix use-after-free bug in cifs_debug_data_proc_show() {CVE-2023-52752}
• media: pvrusb2: fix use after free on context disconnection {CVE-2023-52445}
• media: dm1105: Fix use after free bug in dm1105_remove due to race condition {CVE-2023-35824}
• perf: Fix perf_event_validate_size() lockdep splat {CVE-2023-6931}
• perf: Fix perf_event_validate_size() {CVE-2023-6931}
• net/sched: sch_hfsc: Ensure inner classes have fsc curve {CVE-2023-4623}
• relayfs: fix out-of-bounds access in relay_file_read {CVE-2023-3268}
• xfs: verify buffer contents when we skip log replay {CVE-2023-2124}
• Bluetooth: btsdio: fix use after free bug in btsdio_remove due to race condition {CVE-2023-1989}
• Fix double fget() in vhost_net_set_backend() {CVE-2023-1838}
• net/sched: cls_tcindex: downgrade to imperfect hash {CVE-2023-1829}
• xen/netfront: fix leaking data in shared pages {CVE-2022-33740}
• can: ems_usb: ems_usb_start_xmit(): fix double dev_kfree_skb() in error path {CVE-2022-28390}
• xen/blkfront: fix leaking data in shared pages {CVE-2022-26365}
• mISDN: fix use-after-free bugs in l1oip timer…

This kernel update is based on upstream 5.15.55 and fixes at least the following security issues:

There are use-after-free vulnerabilities caused by timer handler in net/rose/rose_timer.c of linux that allow attackers to crash linux kernel without any privileges (CVE-2022-2318).

Xen Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740, XSA-403). Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742, XSA-403).

Xen network backend may cause Linux netfront to use freed SKBs While adding logic to support XDP (eXpress Data Path), a code label was moved in a way allowing for SKBs having references (pointers) retained for further processing to nevertheless be freed (CVE-2022-33743, XSA-405).

Xen Arm guests can cause Dom0 DoS via PV devices When mapping pages of guests on Arm, dom0 is using an rbtree to keep track of the foreign mappings. Updating of that rbtree is not always done completely with the related lock held, resulting in a small race window, which can be used by unprivileged guests via PV devices to cause inconsistencies of the rbtree. These in consistencies can lead to Denial of Service (DoS) of dom0, e.g. by causing crashes or the inability to perform further mappings of other guests memory pages (CVE-2022-33744, XSA-406).

An issue was discovered in the Linux kernel through 5.18.9. A type confusion bug in nft_set_elem_init (leading to a buffer overflow) could be used by a local attacker to escalate privileges (The attacker can obtain root access, but must start with an unprivileged user namespace to obtain CAP_NET_ADMIN access) (CVE-2022-34918).

Other fixes in this update:

• ALSA: hda: Add fixup for Dell Latitidue E5430
• ALSA: hda/conexant: Apply quirk for another HP ProDesk 600 G3 model
• ALSA: hda/realtek: Enable the headset-mic on a Xiaomi laptop
• ALSA: hda/realtek: Fix headset mic for Acer SF313-51
• ALSA: hda/realtek: Fix headset mic problem for a HP machine with alc221
• ALSA: hda/realtek: Fix headset mic problem for a HP machine with alc671
• ALSA: hda/realtek: fix mute/micmute LEDs for HP ProBook 440/450 G9 and EliteBook 640/650 G9
• ARM: 9213/1: Print message about disabled Spectre workarounds only once
• net: sock: tracing: Fix sock_exceed_buf_limit not to dereference stale pointer (fixes crash)
• xen/netback: avoid entering xenvif_rx_next_skb() with an empty rx queue (fixes crash)
• xfs: only run COW extent recovery when there are no live extents
• xfs: don't include bnobt blocks when reserving free block pool
• xfs: run callbacks before waking waiters in xlog_state_shutdown_callbacks
• xfs: drop async cache flushes from CIL commits

For other upstream fixes, see the referenced changelogs.

This kernel-linus update is based on upstream 5.15.55 and fixes at least the following security issues:

There are use-after-free vulnerabilities caused by timer handler in net/rose/rose_timer.c of linux that allow attackers to crash linux kernel without any privileges (CVE-2022-2318).

Xen Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740, XSA-403). Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742, XSA-403).

Xen network backend may cause Linux netfront to use freed SKBs While adding logic to support XDP (eXpress Data Path), a code label was moved in a way allowing for SKBs having references (pointers) retained for further processing to nevertheless be freed (CVE-2022-33743, XSA-405).

Xen Arm guests can cause Dom0 DoS via PV devices When mapping pages of guests on Arm, dom0 is using an rbtree to keep track of the foreign mappings. Updating of that rbtree is not always done completely with the related lock held, resulting in a small race window, which can be used by unprivileged guests via PV devices to cause inconsistencies of the rbtree. These in consistencies can lead to Denial of Service (DoS) of dom0, e.g. by causing crashes or the inability to perform further mappings of other guests memory pages (CVE-2022-33744, XSA-406).

An issue was discovered in the Linux kernel through 5.18.9. A type confusion bug in nft_set_elem_init (leading to a buffer overflow) could be used by a local attacker to escalate privileges (The attacker can obtain root access, but must start with an unprivileged user namespace to obtain CAP_NET_ADMIN access) (CVE-2022-34918).

For other upstream fixes, see the referenced changelogs.

The SUSE Linux Enterprise 12 SP5 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2022-29900, CVE-2022-29901: Fixed the RETBLEED attack, a new Spectre like Branch Target Buffer attack, that can leak arbitrary kernel information (bsc#1199657).
• CVE-2022-1679: Fixed a use-after-free in the Atheros wireless driver in the way a user forces the ath9k_htc_wait_for_target function to fail with some input messages (bsc#1199487).
• CVE-2022-20132: Fixed out of bounds read due to improper input validation in lg_probe and related functions of hid-lg.c (bsc#1200619).
• CVE-2022-1012: Fixed information leak caused by small table perturb size in the TCP source port generation algorithm (bsc#1199482).
• CVE-2022-33981: Fixed use-after-free in floppy driver (bsc#1200692)
• CVE-2022-20141: Fixed a possible use after free due to improper locking in ip_check_mc_rcu() (bsc#1200604).
• CVE-2021-4157: Fixed an out of memory bounds write flaw in the NFS subsystem, related to the replication of files with NFS. A user could potentially crash the system or escalate privileges on the system (bsc#1194013).
• CVE-2022-20154: Fixed a use after free due to a race condition in lock_sock_nested of sock.c. This could lead to local escalation of privilege with System execution privileges needed (bsc#1200599).
• CVE-2020-26541: Enforce the secure boot forbidden signature database (aka dbx) protection mechanism. (bsc#1177282)
• CVE-2022-2318: Fixed a use-after-free vulnerabilities in the timer handler in net/rose/rose_timer.c that allow attackers to crash the system without any privileges (bsc#1201251).
• CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742: Fixed multiple potential data leaks with Block and Network devices when using untrusted backends (bsc#1200762).

The following non-security bugs were fixed:

• audit: fix a race condition with the auditd tracking code (bsc#1197170).
• block: bio-integrity: Advance seed correctly for larger interval sizes (git-fixes).
• bnxt_en: Remove the setting of dev_port (git-fixes).
• bonding: fix bond_neigh_init() (git-fixes).
• dm crypt: Avoid percpu_counter spinlock contention in crypt_page_alloc() (git-fixes).
• drbd: fix duplicate array initializer (git-fixes).
• drbd: remove assign_p_sizes_qlim (git-fixes).
• drbd: use bdev_alignment_offset instead of queue_alignment_offset (git-fixes).
• drbd: use bdev based limit helpers in drbd_send_sizes (git-fixes).
• exec: Force single empty string when argv is empty (bsc#1200571).
• ext4: fix bug_on ext4_mb_use_inode_pa (bsc#1200810).
• ext4: fix bug_on in __es_tree_search (bsc#1200809).
• ext4: fix bug_on in ext4_writepages (bsc#1200872).
• ext4: fix overhead calculation to account for the reserved gdt blocks (bsc#1200869).
• ext4: fix race condition between ext4_write and ext4_convert_inline_data (bsc#1200807).
• ext4: fix symlink file size not match to file content (bsc#1200868).
• ext4: fix use-after-free in ext4_rename_dir_prepare (bsc#1200871).
• ext4: force overhead calculation if the s_overhead_cluster makes no sense (bsc#1200870).
• ext4: limit length to bitmap_maxbytes - blocksize in punch_hole (bsc#1200806).
• ext4: make variable 'count' signed (bsc#1200820).
• fs-writeback: writeback_sb_inodes Recalculate 'wrote' according skipped pages (bsc#1200873).
• i915_vma: Rename vma_lookup to i915_vma_lookup (git-fixes).
• ibmvnic: Properly dispose of all skbs during a failover (bsc#1200925).
• init: Initialize noop_backing_dev_info early (bsc#1200822).
• inotify: show inotify mask flags in proc fdinfo (bsc#1200600).
• Input: bcm5974 - set missing URB_NO_TRANSFER_DMA_MAP urb flag (git-fixes).
• Input: elan_i2c - fix regulator enable count imbalance after suspend/resume (git-fixes).
• Input: elan_i2c - move regulator_[en|dis]able() out of elan_[en|dis]able_power() (git-fixes).
• Input: omap4-keypad - fix pm_runtime_get_sync() error checking (git-fixes).
• iomap: iomap_write_failed fix (bsc#1200829). -…

The SUSE Linux Enterprise 12 SP5 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2022-29900, CVE-2022-29901: Fixed the RETBLEED attack, a new Spectre like Branch Target Buffer attack, that can leak arbitrary kernel information (bsc#1199657).
• CVE-2022-1679: Fixed a use-after-free in the Atheros wireless driver in the way a user forces the ath9k_htc_wait_for_target function to fail with some input messages (bsc#1199487).
• CVE-2022-20132: Fixed out of bounds read due to improper input validation in lg_probe and related functions of hid-lg.c (bsc#1200619).
• CVE-2022-1012: Fixed information leak caused by small table perturb size in the TCP source port generation algorithm (bsc#1199482).
• CVE-2022-33981: Fixed use-after-free in floppy driver (bsc#1200692)
• CVE-2022-20141: Fixed a possible use after free due to improper locking in ip_check_mc_rcu() (bsc#1200604).
• CVE-2021-4157: Fixed an out of memory bounds write flaw in the NFS subsystem, related to the replication of files with NFS. A user could potentially crash the system or escalate privileges on the system (bsc#1194013).
• CVE-2022-20154: Fixed a use after free due to a race condition in lock_sock_nested of sock.c. This could lead to local escalation of privilege with System execution privileges needed (bsc#1200599).
• CVE-2020-26541: Enforce the secure boot forbidden signature database (aka dbx) protection mechanism. (bsc#1177282)
• CVE-2022-2318: Fixed a use-after-free vulnerabilities in the timer handler in net/rose/rose_timer.c that allow attackers to crash the system without any privileges (bsc#1201251).
• CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742: Fixed multiple potential data leaks with Block and Network devices when using untrusted backends (bsc#1200762).

The following non-security bugs were fixed:

• add mainline tag for a pci-hyperv change
• audit: fix a race condition with the auditd tracking code (bsc#1197170).
• block: bio-integrity: Advance seed correctly for larger interval sizes (git-fixes).
• bnxt_en: Remove the setting of dev_port (git-fixes).
• bonding: fix bond_neigh_init() (git-fixes).
• dm crypt: Avoid percpu_counter spinlock contention in crypt_page_alloc() (git-fixes).
• drbd: fix duplicate array initializer (git-fixes).
• drbd: remove assign_p_sizes_qlim (git-fixes).
• drbd: use bdev_alignment_offset instead of queue_alignment_offset (git-fixes).
• drbd: use bdev based limit helpers in drbd_send_sizes (git-fixes).
• exec: Force single empty string when argv is empty (bsc#1200571).
• ext4: fix bug_on ext4_mb_use_inode_pa (bsc#1200810).
• ext4: fix bug_on in __es_tree_search (bsc#1200809).
• ext4: fix bug_on in ext4_writepages (bsc#1200872).
• ext4: fix overhead calculation to account for the reserved gdt blocks (bsc#1200869).
• ext4: fix race condition between ext4_write and ext4_convert_inline_data (bsc#1200807).
• ext4: fix symlink file size not match to file content (bsc#1200868).
• ext4: fix use-after-free in ext4_rename_dir_prepare (bsc#1200871).
• ext4: force overhead calculation if the s_overhead_cluster makes no sense (bsc#1200870).
• ext4: limit length to bitmap_maxbytes - blocksize in punch_hole (bsc#1200806).
• ext4: make variable 'count' signed (bsc#1200820).
• fs-writeback: writeback_sb_inodes Recalculate 'wrote' according skipped pages (bsc#1200873).
• i915_vma: Rename vma_lookup to i915_vma_lookup (git-fixes).
• ibmvnic: Properly dispose of all skbs during a failover (bsc#1200925).
• init: Initialize noop_backing_dev_info early (bsc#1200822).
• inotify: show inotify mask flags in proc fdinfo (bsc#1200600).
• Input: bcm5974 - set missing URB_NO_TRANSFER_DMA_MAP urb flag (git-fixes).
• Input: elan_i2c - fix regulator enable count imbalance after suspend/resume (git-fixes).
• Input: elan_i2c - move regulator_[en|dis]able() out of elan_[en|dis]able_power() (git-fixes).
• Input: omap4-keypad - fix pm_runtime_get_sync() error checking (git-fixes). -…

The SUSE Linux Enterprise 12 SP4 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2022-29900, CVE-2022-29901: Fixed the RETBLEED attack, a new Spectre like Branch Target Buffer attack, that can leak arbitrary kernel information (bsc#1199657).
• CVE-2022-1679: Fixed a use-after-free in the Atheros wireless driver in the way a user forces the ath9k_htc_wait_for_target function to fail with some input messages (bsc#1199487).
• CVE-2022-20132: Fixed out of bounds read due to improper input validation in lg_probe and related functions of hid-lg.c (bsc#1200619).
• CVE-2022-33981: Fixed use-after-free in floppy driver (bsc#1200692)
• CVE-2022-20141: Fixed a possible use after free due to improper locking in ip_check_mc_rcu() (bsc#1200604).
• CVE-2021-4157: Fixed an out of memory bounds write flaw in the NFS subsystem, related to the replication of files with NFS. A user could potentially crash the system or escalate privileges on the system (bsc#1194013).
• CVE-2022-20154: Fixed a use after free due to a race condition in lock_sock_nested of sock.c. This could lead to local escalation of privilege with System execution privileges needed (bsc#1200599).
• CVE-2022-2318: Fixed a use-after-free vulnerabilities in the timer handler in net/rose/rose_timer.c that allow attackers to crash the system without any privileges (bsc#1201251).
• CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742: Fixed multiple potential data leaks with Block and Network devices when using untrusted backends (bsc#1200762).
• CVE-2021-26341: Some AMD CPUs may transiently execute beyond unconditional direct branches, which may potentially result in data leakage (bsc#1201050).
• CVE-2020-26541: Enforce the secure boot forbidden signature database (aka dbx) protection mechanism. (bsc#1177282)
• CVE-2022-1974: Fixed an use-after-free that could causes kernel crash by simulating an nfc device from user-space (bsc#1200144).
• CVE-2022-1975: Fixed a bug that allows an attacker to crash the linux kernel by simulating nfc device from user-space (bsc#1200143).
• CVE-2022-1729: Fixed a sys_perf_event_open() race condition against self (bsc#1199507).
• CVE-2022-1184: Fixed a use-after-free and memory errors in ext4 when mounting and operating on a corrupted image (bsc#1198577).
• CVE-2022-21499: Lock down kgdb to prohibit secure-boot bypass (bsc#1199426).
• CVE-2019-19377: Fixed a user-after-free that could be triggered when an attacker mounts a crafted btrfs filesystem image (bsc#1158266).

The following non-security bugs were fixed:

• btrfs: tree-checker: fix incorrect printk format (bsc#1200249).
• exec: Force single empty string when argv is empty (bsc#1200571).

The SUSE Linux Enterprise 15 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2022-29900, CVE-2022-29901: Fixed the RETBLEED attack, a new Spectre like Branch Target Buffer attack, that can leak arbitrary kernel information (bsc#1199657).
• CVE-2022-1679: Fixed a use-after-free in the Atheros wireless driver in the way a user forces the ath9k_htc_wait_for_target function to fail with some input messages (bsc#1199487).
• CVE-2022-20132: Fixed out of bounds read due to improper input validation in lg_probe and related functions of hid-lg.c (bsc#1200619).
• CVE-2022-33981: Fixed use-after-free in floppy driver (bsc#1200692)
• CVE-2022-20141: Fixed a possible use after free due to improper locking in ip_check_mc_rcu() (bsc#1200604).
• CVE-2021-4157: Fixed an out of memory bounds write flaw in the NFS subsystem, related to the replication of files with NFS. A user could potentially crash the system or escalate privileges on the system (bsc#1194013).
• CVE-2022-20154: Fixed a use after free due to a race condition in lock_sock_nested of sock.c. This could lead to local escalation of privilege with System execution privileges needed (bsc#1200599).
• CVE-2022-2318: Fixed a use-after-free vulnerabilities in the timer handler in net/rose/rose_timer.c that allow attackers to crash the system without any privileges (bsc#1201251).
• CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742: Fixed multiple potential data leaks with Block and Network devices when using untrusted backends (bsc#1200762).
• CVE-2021-26341: Some AMD CPUs may transiently execute beyond unconditional direct branches, which may potentially result in data leakage (bsc#1201050).
• CVE-2020-26541: Enforce the secure boot forbidden signature database (aka dbx) protection mechanism. (bsc#1177282)

The following non-security bugs were fixed:

• exec: Force single empty string when argv is empty (bsc#1200571).

The SUSE Linux Enterprise 15 SP1 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2022-29900, CVE-2022-29901: Fixed the RETBLEED attack, a new Spectre like Branch Target Buffer attack, that can leak arbitrary kernel information (bsc#1199657).
• CVE-2022-1679: Fixed a use-after-free in the Atheros wireless driver in the way a user forces the ath9k_htc_wait_for_target function to fail with some input messages (bsc#1199487).
• CVE-2022-20132: Fixed out of bounds read due to improper input validation in lg_probe and related functions of hid-lg.c (bsc#1200619).
• CVE-2022-33981: Fixed use-after-free in floppy driver (bsc#1200692)
• CVE-2022-20141: Fixed a possible use after free due to improper locking in ip_check_mc_rcu() (bsc#1200604).
• CVE-2021-4157: Fixed an out of memory bounds write flaw in the NFS subsystem, related to the replication of files with NFS. A user could potentially crash the system or escalate privileges on the system (bsc#1194013).
• CVE-2022-20154: Fixed a use after free due to a race condition in lock_sock_nested of sock.c. This could lead to local escalation of privilege with System execution privileges needed (bsc#1200599).
• CVE-2022-2318: Fixed a use-after-free vulnerabilities in the timer handler in net/rose/rose_timer.c that allow attackers to crash the system without any privileges (bsc#1201251).
• CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742: Fixed multiple potential data leaks with Block and Network devices when using untrusted backends (bsc#1200762).
• CVE-2021-26341: Some AMD CPUs may transiently execute beyond unconditional direct branches, which may potentially result in data leakage (bsc#1201050).

The following non-security bugs were fixed:

• exec: Force single empty string when argv is empty (bsc#1200571).

The SUSE Linux Enterprise 15 SP4 kernel was updated.

The following security bugs were fixed:

• CVE-2022-29900, CVE-2022-29901: Fixed the RETBLEED attack, a new Spectre like Branch Target Buffer attack, that can leak arbitrary kernel information (bsc#1199657).
• CVE-2022-34918: Fixed a buffer overflow with nft_set_elem_init() that could be used by a local attacker to escalate privileges (bnc#1201171).
• CVE-2021-26341: Some AMD CPUs may transiently execute beyond unconditional direct branches, which may potentially result in data leakage (bsc#1201050).
• CVE-2022-20154: Fixed a use after free due to a race condition in lock_sock_nested of sock.c. This could lead to local escalation of privilege with System execution privileges needed (bsc#1200599).
• CVE-2022-2318: Fixed a use-after-free vulnerabilities in the timer handler in net/rose/rose_timer.c that allow attackers to crash the system without any privileges (bsc#1201251).
• CVE-2022-1462: Fixed an out-of-bounds read flaw in the TeleTYpe subsystem (bnc#1198829).
• CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742: Fixed multiple potential data leaks with Block and Network devices when using untrusted backends (bsc#1200762).
• CVE-2022-33743: Fixed a Denial of Service related to XDP (bsc#1200763).
• CVE-2022-1679: Fixed a use-after-free in the Atheros wireless driver in the way a user forces the ath9k_htc_wait_for_target function to fail with some input messages (bnc#1199487).
• CVE-2022-20132: Fixed out of bounds read due to improper input validation in lg_probe and related functions of hid-lg.c (bnc#1200619).
• CVE-2022-33981: Fixed use-after-free in floppy driver (bsc#1200692)
• CVE-2022-1012: Fixed information leak caused by small table perturb size in the TCP source port generation algorithm (bsc#1199482).
• CVE-2022-1998: Fixed a use after free in the file system notify functionality (bnc#1200284).
• CVE-2022-1966: Fixed a use-after-free vulnerability in the Netfilter subsystem. This flaw allowed a local attacker with user access to cause a privilege escalation issue. (bnc#1200015)
• CVE-2022-1852: Fixed a null-ptr-deref in the kvm module which can lead to DoS. (bsc#1199875)
• CVE-2022-1789: Fixed a NULL pointer dereference when shadow paging is enabled. (bnc#1199674)
• CVE-2022-1508: Fixed an out-of-bounds read flaw that could cause the system to crash. (bsc#1198968)
• CVE-2022-1671: Fixed a null-ptr-deref bugs in net/rxrpc/server_key.c, unprivileged users could easily trigger it via ioctl. (bsc#1199439)
• CVE-2022-1651: Fixed a bug in ACRN Device Model emulates virtual NICs in VM. This flaw may allow a local privileged attacker to leak kernel unauthorized information and also cause a denial of service problem. (bsc#1199433)
• CVE-2022-29582: Fixed a use-after-free due to a race condition in io_uring timeouts. This can be triggered by a local user who has no access to any user namespace; however, the race condition perhaps can only be exploited infrequently. (bnc#1198811)
• CVE-2022-0494: Fixed a kernel information leak flaw in the scsi_ioctl function. This flaw allowed a local attacker with a special user privilege to create issues with confidentiality. (bnc#1197386)
• CVE-2021-4204: Fixed a vulnerability that allows local attackers to escalate privileges on affected installations via ebpf. (bnc#1194111)
• CVE-2022-23222: Fixed a bug that allowed local users to gain privileges. (bnc#1194765)
• CVE-2022-0264: Fixed a vulnerability in the Linux kernel's eBPF verifier when handling internal data structures. Internal memory locations could be returned to userspace. A local attacker with the permissions to insert eBPF code to the kernel can use this to leak internal kernel memory details defeating some of the exploit mitigations in place for the kernel. (bnc#1194826)
• CVE-2022-1016: Fixed a vulnerability in the nf_tables component of the netfilter subsystem. This vulnerability gives an attacker a powerful primitive that can be used to both read from and…

The SUSE Linux Enterprise 15 SP4 kernel was updated.

The following security bugs were fixed:

• CVE-2022-29900, CVE-2022-29901: Fixed the RETBLEED attack, a new Spectre like Branch Target Buffer attack, that can leak arbitrary kernel information (bsc#1199657).
• CVE-2022-34918: Fixed a buffer overflow with nft_set_elem_init() that could be used by a local attacker to escalate privileges (bnc#1201171).
• CVE-2021-26341: Some AMD CPUs may transiently execute beyond unconditional direct branches, which may potentially result in data leakage (bsc#1201050).
• CVE-2022-20154: Fixed a use after free due to a race condition in lock_sock_nested of sock.c. This could lead to local escalation of privilege with System execution privileges needed (bsc#1200599).
• CVE-2022-2318: Fixed a use-after-free vulnerabilities in the timer handler in net/rose/rose_timer.c that allow attackers to crash the system without any privileges (bsc#1201251).
• CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742: Fixed multiple potential data leaks with Block and Network devices when using untrusted backends (bsc#1200762).
• CVE-2022-33743: Fixed a Denial of Service related to XDP (bsc#1200763).
• CVE-2022-1966: Fixed a use-after-free vulnerability in the Netfilter subsystem. This flaw allowed a local attacker with user access to cause a privilege escalation issue. (bnc#1200015)
• CVE-2022-1852: Fixed a null-ptr-deref in the kvm module which can lead to DoS. (bsc#1199875)
• CVE-2022-1789: Fixed a NULL pointer dereference when shadow paging is enabled. (bnc#1199674)
• CVE-2022-1508: Fixed an out-of-bounds read flaw that could cause the system to crash. (bsc#1198968)
• CVE-2022-1671: Fixed a null-ptr-deref bugs in net/rxrpc/server_key.c, unprivileged users could easily trigger it via ioctl. (bsc#1199439)
• CVE-2022-1651: Fixed a bug in ACRN Device Model emulates virtual NICs in VM. This flaw may allow a local privileged attacker to leak kernel unauthorized information and also cause a denial of service problem. (bsc#1199433)
• CVE-2022-29582: Fixed a use-after-free due to a race condition in io_uring timeouts. This can be triggered by a local user who has no access to any user namespace; however, the race condition perhaps can only be exploited infrequently. (bnc#1198811)
• CVE-2022-0494: Fixed a kernel information leak flaw in the scsi_ioctl function. This flaw allowed a local attacker with a special user privilege to create issues with confidentiality. (bnc#1197386)
• CVE-2021-4204: Fixed a vulnerability that allows local attackers to escalate privileges on affected installations via ebpf. (bnc#1194111)
• CVE-2022-23222: Fixed a bug that allowed local users to gain privileges. (bnc#1194765)
• CVE-2022-0264: Fixed a vulnerability in the Linux kernel's eBPF verifier when handling internal data structures. Internal memory locations could be returned to userspace. A local attacker with the permissions to insert eBPF code to the kernel can use this to leak internal kernel memory details defeating some of the exploit mitigations in place for the kernel. (bnc#1194826)
• CVE-2022-1016: Fixed a vulnerability in the nf_tables component of the netfilter subsystem. This vulnerability gives an attacker a powerful primitive that can be used to both read from and write to relative stack data, which can lead to arbitrary code execution. (bsc#1197227)
• CVE-2022-1205: Fixed null pointer dereference and use-after-free vulnerabilities that allow an attacker to crash the linux kernel by simulating Amateur Radio. (bsc#1198027)
• CVE-2022-1198: Fixed an use-after-free vulnerability that allow an attacker to crash the linux kernel by simulating Amateur Radio (bsc#1198030).
• CVE-2022-1972: Fixed a buffer overflow in nftable that could lead to privilege escalation. (bsc#1200019)
• CVE-2022-21127: Fixed a stale MMIO data transient which can be exploited to speculatively/transiently disclose information via spectre like attacks. (bsc#1199650)
• CVE-2022-21123: Fixed a…

The SUSE Linux Enterprise 12 SP5 RT kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2022-29900, CVE-2022-29901: Fixed the RETBLEED attack, a new Spectre like Branch Target Buffer attack, that can leak arbitrary kernel information (bsc#1199657).
• CVE-2022-1679: Fixed a use-after-free in the Atheros wireless driver in the way a user forces the ath9k_htc_wait_for_target function to fail with some input messages (bsc#1199487).
• CVE-2022-20132: Fixed out of bounds read due to improper input validation in lg_probe and related functions of hid-lg.c (bsc#1200619).
• CVE-2022-1012: Fixed information leak caused by small table perturb size in the TCP source port generation algorithm (bsc#1199482).
• CVE-2022-20141: Fixed a possible use after free due to improper locking in ip_check_mc_rcu() (bsc#1200604).
• CVE-2021-4157: Fixed an out of memory bounds write flaw in the NFS subsystem, related to the replication of files with NFS. A user could potentially crash the system or escalate privileges on the system (bsc#1194013).
• CVE-2022-20154: Fixed a use after free due to a race condition in lock_sock_nested of sock.c. This could lead to local escalation of privilege with System execution privileges needed (bsc#1200599).
• CVE-2020-26541: Enforce the secure boot forbidden signature database (aka dbx) protection mechanism. (bsc#1177282)
• CVE-2022-2318: Fixed a use-after-free vulnerabilities in the timer handler in net/rose/rose_timer.c that allow attackers to crash the system without any privileges (bsc#1201251).
• CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742: Fixed multiple potential data leaks with Block and Network devices when using untrusted backends (bsc#1200762).
• CVE-2022-21166: Fixed a stale MMIO data transient which can be exploited to speculatively/transiently disclose information via Spectre like attacks (bsc#1199650).
• CVE-2022-21123: Fixed a stale MMIO data transient which can be exploited to speculatively/transiently disclose information via Spectre like attacks (bsc#1199650).
• CVE-2022-21125: Fixed a stale MMIO data transient which can be exploited to speculatively/transiently disclose information via Spectre like attacks (bsc#1199650).
• CVE-2022-21127: Fixed a stale MMIO data transient which can be exploited to speculatively/transiently disclose information via Spectre like attacks (bsc#1199650).
• CVE-2022-21180: Fixed a stale MMIO data transient which can be exploited to speculatively/transiently disclose information via Spectre like attacks (bsc#1199650).
• CVE-2021-26341: Some AMD CPUs may transiently execute beyond unconditional direct branches, which may potentially result in data leakage (bsc#1201050).
• CVE-2022-1966: Fixed an use-after-free bug in the netfilter subsystem. This flaw allowed a local attacker with user access to cause a privilege escalation issue. (bnc#1200015)
• CVE-2022-1975: Fixed a sleep-in-atomic bug that allows attacker to crash linux kernel by simulating nfc device from user-space. (bsc#1200143)
• CVE-2022-1974: Fixed an use-after-free that could causes kernel crash by simulating an nfc device from user-space. (bsc#1200144)
• CVE-2019-19377: Fixed an user-after-free that could be triggered when an attacker mounts a crafted btrfs filesystem image. (bnc#1158266)
• CVE-2022-1729: Fixed a sys_perf_event_open() race condition against self (bsc#1199507).
• CVE-2022-1184: Fixed an use-after-free and memory errors in ext4 when mounting and operating on a corrupted image. (bsc#1198577)
• CVE-2022-21499: Reinforce the kernel lockdown feature, until now it's been trivial to break out of it with kgdb or kdb. (bsc#1199426)
• CVE-2022-1836: Fixed a bug in the floppy submodule disabling FDRAWCMD by default. (bsc#1198866)
• CVE-2022-1652: Fixed a statically allocated error counter inside the floppy kernel module (bsc#1199063).
• CVE-2022-1734: Fixed a r/w use-after-free when non synchronized between cleanup routine and…

The SUSE Linux Enterprise 12 kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2022-36946: Fixed an incorrect packet trucation operation which could lead to denial of service (bnc#1201940).
• CVE-2022-20166: Fixed several possible memory safety issues due to unsafe operations (bsc#1200598).
• CVE-2020-15393: Fixed a memory leak in the usbtest driver which could lead to denial of service (bnc#1173514).
• CVE-2020-36558: Fixed a race condition involving VT_RESIZEX which could lead to a NULL pointer dereference and general protection fault (bnc#1200910).
• CVE-2020-36557: Fixed a race condition between the VT_DISALLOCATE ioctl and closing/opening of TTYs could lead to a use-after-free (bnc#1201429).
• CVE-2021-33656: Fixed memory out of bounds write related to ioctl cmd PIO_FONT (bnc#1201636).
• CVE-2021-33655: Fixed out of bounds write with ioctl FBIOPUT_VSCREENINFO (bnc#1201635).
• CVE-2022-1462: Fixed an out-of-bounds read flaw in the TTY subsystem (bnc#1198829).
• CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742: Fixed multiple potential data leaks with Block and Network devices when using untrusted backends (bsc#1200762).
• CVE-2022-2318: Fixed a use-after-free vulnerability in the timer handler in Rose subsystem that allowed unprivileged attackers to crash the system (bsc#1201251).
• CVE-2021-39713: Fixed a race condition in the network scheduling subsystem which could lead to a use-after-free (bnc#1196973).

The following non-security bugs were fixed:

• kvm: emulate: Do not adjust size of fastop and setcc subroutines (bsc#1201930).
• kvm: emulate: Fix SETcc emulation function offsets with SLS (bsc#1201930).

The SUSE Linux Enterprise 15 SP3 kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2022-36946: Fixed an incorrect packet trucation operation which could lead to denial of service (bnc#1201940).
• CVE-2022-29581: Fixed improper update of reference count in net/sched that could cause root privilege escalation (bnc#1199665).
• CVE-2022-20166: Fixed several possible memory safety issues due to unsafe operations (bsc#1200598).
• CVE-2020-36558: Fixed a race condition involving VT_RESIZEX which could lead to a NULL pointer dereference and general protection fault (bnc#1200910).
• CVE-2020-36557: Fixed a race condition between the VT_DISALLOCATE ioctl and closing/opening of TTYs that could lead to a use-after-free (bnc#1201429).
• CVE-2021-33655: Fixed an out of bounds write by ioctl cmd FBIOPUT_VSCREENINFO (bnc#1201635).
• CVE-2021-33656: Fixed an out of bounds write related to ioctl cmd PIO_FONT (bnc#1201636).
• CVE-2022-21505: Fixed a kernel lockdown bypass via IMA policy (bsc#1201458).
• CVE-2022-1462: Fixed an out-of-bounds read flaw in the TTY subsystem (bnc#1198829).
• CVE-2022-1116: Fixed an integer overflow vulnerability in io_uring which allowed a local attacker to escalate privileges to root (bnc#1199647).- CVE-2022-2318: Fixed a use-after-free vulnerability in the timer handler in Rose subsystem that allowed unprivileged attackers to crash the system (bsc#1201251).
• CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742: Fixed multiple potential data leaks with Block and Network devices when using untrusted backends (bsc#1200762).

The following non-security bugs were fixed:

• Fixed a system crash related to the recent RETBLEED mitigation (bsc#1201644, bsc#1201664, bsc#1201672, bsc#1201673, bsc#1201676).
• qla2xxx: drop patch which prevented nvme port discovery (bsc#1200651 bsc#1200644 bsc#1201954 bsc#1201958).
• kvm: emulate: do not adjust size of fastop and setcc subroutines (bsc#1201930).
• bpf, cpumap: Remove rcpu pointer from cpu_map_build_skb signature (bsc#1199364).
• bpf: enable BPF type format (BTF) (jsc#SLE-24559).
• nfs: avoid NULL pointer dereference when there is unflushed data (bsc#1201196).
• hv_netvsc: Add (more) validation for untrusted Hyper-V values (bsc#1199364).
• hv_netvsc: Add comment of netvsc_xdp_xmit() (bsc#1199364).
• hv_netvsc: Add support for XDP_REDIRECT (bsc#1199364).
• hv_netvsc: Copy packets sent by Hyper-V out of the receive buffer (bsc#1199364).
• hv_netvsc: Fix validation in netvsc_linkstatus_callback() (bsc#1199364).
• kvm/emulate: Fix SETcc emulation function offsets with SLS (bsc#1201930).
• lkdtm: Disable return thunks in rodata.c (bsc#1178134).
• net, xdp: Introduce __xdp_build_skb_from_frame utility routine (bsc#1199364).
• net, xdp: Introduce xdp_build_skb_from_frame utility routine (bsc#1199364).
• nvme: consider also host_iface when checking ip options (bsc#1199670).
• powerpc/mobility: wait for memory transfer to complete (bsc#1201846 ltc#198761).
• powerpc/pseries/mobility: set NMI watchdog factor during an LPM (bsc#1201846 ltc#198761).
• powerpc/watchdog: introduce a NMI watchdog's factor (bsc#1201846 ltc#198761).
• scsi: lpfc: Copyright updates for 14.2.0.5 patches (bsc#1201956).
• scsi: lpfc: Fix attempted FA-PWWN usage after feature disable (bsc#1201956).
• scsi: lpfc: Fix lost NVMe paths during LIF bounce stress test (bsc#1201956 bsc#1200521).
• scsi: lpfc: Fix possible memory leak when failing to issue CMF WQE (bsc#1201956).
• scsi: lpfc: Fix uninitialized cqe field in lpfc_nvme_cancel_iocb() (bsc#1201956).
• scsi: lpfc: Prevent buffer overflow crashes in debugfs with malformed user input (bsc#1201956).
• scsi: lpfc: Refactor lpfc_nvmet_prep_abort_wqe() into lpfc_sli_prep_abort_xri() (bsc#1201956).
• scsi: lpfc: Remove Menlo/Hornet related code (bsc#1201956).
• scsi: lpfc: Remove extra atomic_inc on cmd_pending in queuecommand after VMID (bsc#1201956).
• scsi: lpfc: Revert RSCN_MEMENTO workaround for…

The SUSE Linux Enterprise 15 SP2 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2020-36557: Fixed a race condition between the VT_DISALLOCATE ioctl and closing/opening of ttys could lead to a use-after-free (bnc#1201429).
• CVE-2020-36558: Fixed a race condition involving VT_RESIZEX which could lead to a NULL pointer dereference and general protection fault (bnc#1200910).
• CVE-2021-4157: Fixed an out of memory bounds write flaw in the NFS subsystem, related to the replication of files with NFS. A user could potentially crash the system or escalate privileges on the system (bsc#1194013).
• CVE-2021-26341: Some AMD CPUs may transiently execute beyond unconditional direct branches, which may potentially result in data leakage (bsc#1201050).
• CVE-2021-33655: Fixed memory out of bounds write by ioctl cmd FBIOPUT_VSCREENINFO (bnc#1201635).
• CVE-2021-33656: Fixed memory out of bounds write related to ioctl cmd PIO_FONT (bnc#1201636).
• CVE-2022-1116: Fixed a integer overflow vulnerability in io_uring which allowed a local attacker to cause memory corruption and escalate privileges to root (bnc#1199647).
• CVE-2022-1462: Fixed an out-of-bounds read flaw in the TeleTYpe subsystem. This flaw allowed a local user to crash the system or read unauthorized random data from memory. (bnc#1198829)
• CVE-2022-1679: Fixed a use-after-free in the Atheros wireless driver in the way a user forces the ath9k_htc_wait_for_target function to fail with some input messages (bsc#1199487).
• CVE-2022-2318: Fixed a use-after-free vulnerabilities in the timer handler in net/rose/rose_timer.c that allow attackers to crash the system without any privileges (bsc#1201251).
• CVE-2022-20132: Fixed out of bounds read due to improper input validation in lg_probe and related functions of hid-lg.c (bsc#1200619).
• CVE-2022-20141: Fixed a possible use after free due to improper locking in ip_check_mc_rcu() (bsc#1200604).
• CVE-2022-20154: Fixed a use after free due to a race condition in lock_sock_nested of sock.c. This could lead to local escalation of privilege with System execution privileges needed (bsc#1200599).
• CVE-2022-21505: Fixed kexec lockdown bypass with ima policy (bsc#1201458).
• CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742: Fixed multiple potential data leaks with Block and Network devices when using untrusted backends (bsc#1200762).
• CVE-2022-29900, CVE-2022-29901: Fixed the RETBLEED attack, a new Spectre like Branch Target Buffer attack, that can leak arbitrary kernel information (bsc#1199657).
• CVE-2022-33981: Fixed use-after-free in floppy driver (bsc#1200692)
• CVE-2022-36946: Fixed incorrect packet truncation in nfqnl_mangle() that could lead to remote DoS (bnc#1201940).

The following non-security bugs were fixed:

• bcache: avoid unnecessary soft lockup in kworker update_writeback_rate() (bsc#1197362).
• blk-mq: Fix wrong wakeup batch configuration which will cause hang (bsc#1200263).
• blk-mq: clear active_queues before clearing BLK_MQ_F_TAG_QUEUE_SHARED (bsc#1200263).
• blk-mq: fix tag_get wait task can't be awakened (bsc#1200263).
• dma-direct: Fix potential NULL pointer dereference (bsc#1196472 ltc#192278).
• dma-mapping: Allow mixing bypass and mapped DMA operation (bsc#1196472 ltc#192278).
• dma-mapping: add a dma_ops_bypass flag to struct device (bsc#1196472 ltc#192278).
• dma-mapping: move the remaining DMA API calls out of line (bsc#1196472 ltc#192278).
• dma: kABI: Add back removed exports (bsc#1196472 ltc#192278).
• exec: Force single empty string when argv is empty (bsc#1200571).
• fsnotify: invalidate dcache before IN_DELETE event (bsc#1195478 bsc#1200905).
• kvm: emulate: Fix SETcc emulation function offsets with SLS (bsc#1201930).
• kvm: emulate: do not adjust size of fastop and setcc subroutines (bsc#1201930).
• powerpc/dma: Fallback to dma_ops when persistent memory present (bsc#1196472 ltc#192278).
• powerpc/pseries/iommu: Create defines for…

The SUSE Linux Enterprise 12 SP3 LTSS kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2020-15393: CVE-2020-15393: Fixed a memory leak in usbtest_disconnect (bnc#1173514).
• CVE-2020-36557: Fixed race condition between the VT_DISALLOCATE ioctl and closing/opening of ttys that could lead to a use-after-free (bnc#1201429).
• CVE-2020-36558: Fixed race condition involving VT_RESIZEX that could lead to a NULL pointer dereference and general protection fault (bnc#1200910).
• CVE-2021-33655: Fixed out of bounds write with ioctl FBIOPUT_VSCREENINFO (bnc#1201635).
• CVE-2021-33656: Fixed out of bounds write with ioctl PIO_FONT (bnc#1201636).
• CVE-2021-39713: Fixed a race condition in the network scheduling subsystem which could lead to a use-after-free. (bnc#1196973)
• CVE-2022-1462: Fixed an out-of-bounds read flaw in the TeleTYpe subsystem (bnc#1198829).
• CVE-2022-20166: Fixed possible out of bounds write due to sprintf unsafety that could cause local escalation of privilege (bnc#1200598).
• CVE-2022-2318: Fixed a use-after-free vulnerabilities in the timer handler in net/rose/rose_timer.c that allow attackers to crash the system without any privileges (bsc#1201251).
• CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742: Fixed multiple potential data leaks with Block and Network devices when using untrusted backends (bsc#1200762).
• CVE-2022-36946: Fixed incorrect packet truncation in nfqnl_mangle() that could lead to remote DoS (bnc#1201940).

The following non-security bugs were fixed:

• kvm: emulate: do not adjust size of fastop and setcc subroutines (bsc#1201930).
• kvm: emulate: Fix SETcc emulation function offsets with SLS (bsc#1201930).

The SUSE Linux Enterprise 15 SP3 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2020-36516: Fixed TCP session data injection vulnerability via the mixed IPID assignment method (bnc#1196616).
• CVE-2020-36557: Fixed race condition between the VT_DISALLOCATE ioctl and closing/opening of ttys that could lead to a use-after-free (bnc#1201429).
• CVE-2020-36558: Fixed race condition involving VT_RESIZEX that could lead to a NULL pointer dereference and general protection fault (bnc#1200910).
• CVE-2021-33655: Fixed out of bounds write with ioctl FBIOPUT_VSCREENINFO (bnc#1201635).
• CVE-2021-33656: Fixed out of bounds write with ioctl PIO_FONT (bnc#1201636).
• CVE-2022-1116: Fixed a integer overflow vulnerability in io_uring which allowed a local attacker to cause memory corruption and escalate privileges to root (bnc#1199647).
• CVE-2022-1462: Fixed an out-of-bounds read flaw in the TeleTYpe subsystem (bnc#1198829).
• CVE-2022-2318: Fixed a use-after-free vulnerabilities in the timer handler in net/rose/rose_timer.c that allow attackers to crash the system without any privileges (bsc#1201251).
• CVE-2022-2639: Fixed integer underflow that could lead to out-of-bounds write in reserve_sfa_size() (bsc#1202154).
• CVE-2022-20166: Fixed possible out of bounds write due to sprintf unsafety that could cause local escalation of privilege (bnc#1200598)
• CVE-2022-21505: Fixed kexec lockdown bypass with IMA policy (bsc#1201458).
• CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742: Fixed multiple potential data leaks with Block and Network devices when using untrusted backends (bsc#1200762).
• CVE-2022-29581: Fixed improper update of Reference Count in net/sched that could cause root privilege escalation (bnc#1199665).
• CVE-2022-32250: Fixed user-after-free in net/netfilter/nf_tables_api.c that could allow local privilege escalation (bnc#1200015).
• CVE-2022-36946: Fixed incorrect packet truncation in nfqnl_mangle() that could lead to remote DoS (bnc#1201940).

The following non-security bugs were fixed:

• ACPI: APEI: Better fix to avoid spamming the console with old error logs (git-fixes).
• ACPI: CPPC: Do not prevent CPPC from working in the future (git-fixes).
• ACPI: video: Shortening quirk list by identifying Clevo by board_name only (git-fixes).
• ALSA: hda - Add fixup for Dell Latitidue E5430 (git-fixes).
• ALSA: hda/conexant: Apply quirk for another HP ProDesk 600 G3 model (git-fixes).
• ALSA: hda/realtek - Enable the headset-mic on a Xiaomi's laptop (git-fixes).
• ALSA: hda/realtek - Fix headset mic problem for a HP machine with alc221 (git-fixes).
• ALSA: hda/realtek - Fix headset mic problem for a HP machine with alc671 (git-fixes).
• ASoC: Intel: Skylake: Correct the handling of fmt_config flexible array (git-fixes).
• ASoC: Intel: Skylake: Correct the ssp rate discovery in skl_get_ssp_clks() (git-fixes).
• ASoC: Remove unused hw_write_t type (git-fixes).
• ASoC: cs47l15: Fix event generation for low power mux control (git-fixes).
• ASoC: madera: Fix event generation for OUT1 demux (git-fixes).
• ASoC: madera: Fix event generation for rate controls (git-fixes).
• ASoC: ops: Fix off by one in range control validation (git-fixes).
• ASoC: sgtl5000: Fix noise on shutdown/remove (git-fixes).
• ASoC: wm5110: Fix DRE control (git-fixes).
• Bluetooth: L2CAP: Fix use-after-free caused by l2cap_chan_put (git-fixes).
• Bluetooth: hci_intel: Add check for platform_driver_register (git-fixes).
• FDDI: defxx: Bail out gracefully with unassigned PCI resource for CSR (git-fixes).
• FDDI: defxx: Make MMIO the configuration default except for EISA (git-fixes).
• Fixed a system crash related to the recent RETBLEED mitigation (bsc#1201644, bsc#1201664, bsc#1201672, bsc#1201673, bsc#1201676).
• Fixed battery detection problem on macbooks (bnc#1201206).
• HID: cp2112: prevent a buffer overflow in cp2112_xfer() (git-fixes).
• KVM/emulate: Fix SETcc emulation function offsets…

The SUSE Linux Enterprise 15 SP3 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2020-36516: Fixed TCP session data injection vulnerability via the mixed IPID assignment method (bnc#1196616).
• CVE-2020-36557: Fixed race condition between the VT_DISALLOCATE ioctl and closing/opening of ttys that could lead to a use-after-free (bnc#1201429).
• CVE-2020-36558: Fixed race condition involving VT_RESIZEX that could lead to a NULL pointer dereference and general protection fault (bnc#1200910).
• CVE-2021-33655: Fixed out of bounds write with ioctl FBIOPUT_VSCREENINFO (bnc#1201635).
• CVE-2021-33656: Fixed out of bounds write with ioctl PIO_FONT (bnc#1201636).
• CVE-2022-1116: Fixed a integer overflow vulnerability in io_uring which allowed a local attacker to cause memory corruption and escalate privileges to root (bnc#1199647).
• CVE-2022-1462: Fixed an out-of-bounds read flaw in the TeleTYpe subsystem (bnc#1198829).
• CVE-2022-2318: Fixed a use-after-free vulnerabilities in the timer handler in net/rose/rose_timer.c that allow attackers to crash the system without any privileges (bsc#1201251).
• CVE-2022-2639: Fixed integer underflow that could lead to out-of-bounds write in reserve_sfa_size() (bsc#1202154).
• CVE-2022-20166: Fixed possible out of bounds write due to sprintf unsafety that could cause local escalation of privilege (bnc#1200598)
• CVE-2022-21505: Fixed kexec lockdown bypass with IMA policy (bsc#1201458).
• CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742: Fixed multiple potential data leaks with Block and Network devices when using untrusted backends (bsc#1200762).
• CVE-2022-29581: Fixed improper update of Reference Count in net/sched that could cause root privilege escalation (bnc#1199665).
• CVE-2022-32250: Fixed user-after-free in net/netfilter/nf_tables_api.c that could allow local privilege escalation (bnc#1200015).
• CVE-2022-36946: Fixed incorrect packet truncation in nfqnl_mangle() that could lead to remote DoS (bnc#1201940).

The following non-security bugs were fixed:

• ACPI: APEI: Better fix to avoid spamming the console with old error logs (git-fixes).
• ACPI: CPPC: Do not prevent CPPC from working in the future (git-fixes).
• ACPI: video: Shortening quirk list by identifying Clevo by board_name only (git-fixes).
• ALSA: hda - Add fixup for Dell Latitidue E5430 (git-fixes).
• ALSA: hda/conexant: Apply quirk for another HP ProDesk 600 G3 model (git-fixes).
• ALSA: hda/realtek - Enable the headset-mic on a Xiaomi's laptop (git-fixes).
• ALSA: hda/realtek - Fix headset mic problem for a HP machine with alc221 (git-fixes).
• ALSA: hda/realtek - Fix headset mic problem for a HP machine with alc671 (git-fixes).
• ASoC: Intel: Skylake: Correct the handling of fmt_config flexible array (git-fixes).
• ASoC: Intel: Skylake: Correct the ssp rate discovery in skl_get_ssp_clks() (git-fixes).
• ASoC: Remove unused hw_write_t type (git-fixes).
• ASoC: cs47l15: Fix event generation for low power mux control (git-fixes).
• ASoC: madera: Fix event generation for OUT1 demux (git-fixes).
• ASoC: madera: Fix event generation for rate controls (git-fixes).
• ASoC: ops: Fix off by one in range control validation (git-fixes).
• ASoC: sgtl5000: Fix noise on shutdown/remove (git-fixes).
• ASoC: wm5110: Fix DRE control (git-fixes).
• Bluetooth: L2CAP: Fix use-after-free caused by l2cap_chan_put (git-fixes).
• Bluetooth: hci_intel: Add check for platform_driver_register (git-fixes).
• FDDI: defxx: Bail out gracefully with unassigned PCI resource for CSR (git-fixes).
• FDDI: defxx: Make MMIO the configuration default except for EISA (git-fixes).
• Fixed a system crash related to the recent RETBLEED mitigation (bsc#1201644, bsc#1201664, bsc#1201672, bsc#1201673, bsc#1201676).
• Fixed battery detection problem on macbooks (bnc#1201206).
• HID: cp2112: prevent a buffer overflow in cp2112_xfer() (git-fixes).
• KVM/emulate: Fix SETcc emulation function offsets…

The SUSE Linux Enterprise 15 SP3 RT kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2022-2639: Fixed integer underflow that could lead to out-of-bounds write in reserve_sfa_size() (bsc#1202154).
• CVE-2020-36516: Fixed TCP session data injection vulnerability via the mixed IPID assignment method (bnc#1196616).
• CVE-2022-36946: Fixed an incorrect packet trucation operation which could lead to denial of service (bnc#1201940).
• CVE-2022-29581: Fixed improper update of Reference Count in net/sched that could cause root privilege escalation (bnc#1199665).
• CVE-2022-20166: Fixed several possible memory safety issues due to unsafe operations (bsc#1200598).
• CVE-2020-36558: Fixed a race condition involving VT_RESIZEX which could lead to a NULL pointer dereference and general protection fault (bnc#1200910).
• CVE-2020-36557: Fixed a race condition between the VT_DISALLOCATE ioctl and closing/opening of TTYs could lead to a use-after-free (bnc#1201429).
• CVE-2022-21505: Fixed kexec lockdown bypass with IMA policy (bsc#1201458).
• CVE-2021-33656: Fixed memory out of bounds write related to ioctl cmd PIO_FONT (bnc#1201636).
• CVE-2021-33655: Fixed out of bounds write with ioctl FBIOPUT_VSCREENINFO (bnc#1201635).
• CVE-2022-1462: Fixed an out-of-bounds read flaw in the TTY subsystem (bnc#1198829).
• CVE-2022-1116: Fixed a integer overflow vulnerability in io_uring which allowed a local attacker to cause memory corruption and escalate privileges to root (bnc#1199647).
• CVE-2022-2318: Fixed a use-after-free vulnerability in the timer handler in Rose subsystem that allowed unprivileged attackers to crash the system (bsc#1201251).
• CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742: Fixed multiple potential data leaks with Block and Network devices when using untrusted backends (bsc#1200762).

The following non-security bugs were fixed:

• Fix bsc#1201644, bsc#1201664, bsc#1201672, bsc#1201673, bsc#1201676 All are reports of the same problem - the IBRS_* regs push/popping was wrong but it needs 1b331eeea7b8 ('x86/entry: Remove skip_r11rcx') too.
• ACPI: APEI: Better fix to avoid spamming the console with old error logs (git-fixes).
• ACPI: CPPC: Do not prevent CPPC from working in the future (git-fixes).
• ACPI: video: Shortening quirk list by identifying Clevo by board_name only (git-fixes).
• ALSA: hda - Add fixup for Dell Latitidue E5430 (git-fixes).
• ALSA: hda/conexant: Apply quirk for another HP ProDesk 600 G3 model (git-fixes).
• ALSA: hda/realtek - Enable the headset-mic on a Xiaomi's laptop (git-fixes).
• ALSA: hda/realtek - Fix headset mic problem for a HP machine with alc221 (git-fixes).
• ALSA: hda/realtek - Fix headset mic problem for a HP machine with alc671 (git-fixes).
• ASoC: Intel: Skylake: Correct the handling of fmt_config flexible array (git-fixes).
• ASoC: Intel: Skylake: Correct the ssp rate discovery in skl_get_ssp_clks() (git-fixes).
• ASoC: Remove unused hw_write_t type (git-fixes).
• ASoC: cs47l15: Fix event generation for low power mux control (git-fixes).
• ASoC: madera: Fix event generation for OUT1 demux (git-fixes).
• ASoC: madera: Fix event generation for rate controls (git-fixes).
• ASoC: ops: Fix off by one in range control validation (git-fixes).
• ASoC: sgtl5000: Fix noise on shutdown/remove (git-fixes).
• ASoC: wm5110: Fix DRE control (git-fixes).
• Bluetooth: L2CAP: Fix use-after-free caused by l2cap_chan_put (git-fixes).
• Bluetooth: hci_intel: Add check for platform_driver_register (git-fixes).
• Fixed a regression where smart batteries would not be detected on Mac (bsc#1201206).
• Fixed an issue where qla2xxx would prevent nvme port discovery (bsc#1200651 bsc#1200644 bsc#1201954 bsc#1201958).
• FDDI: defxx: Bail out gracefully with unassigned PCI resource for CSR (git-fixes).
• FDDI: defxx: Make MMIO the configuration default except for EISA (git-fixes).
• Fix 1201644, 1201664, 1201672, 1201673, 1201676 All are reports of the…

The SUSE Linux Enterprise 15 SP3 RT kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2022-2639: Fixed integer underflow that could lead to out-of-bounds write in reserve_sfa_size() (bsc#1202154).
• CVE-2020-36516: Fixed TCP session data injection vulnerability via the mixed IPID assignment method (bnc#1196616).
• CVE-2022-36946: Fixed an incorrect packet trucation operation which could lead to denial of service (bnc#1201940).
• CVE-2022-29581: Fixed improper update of Reference Count in net/sched that could cause root privilege escalation (bnc#1199665).
• CVE-2022-20166: Fixed several possible memory safety issues due to unsafe operations (bsc#1200598).
• CVE-2020-36558: Fixed a race condition involving VT_RESIZEX which could lead to a NULL pointer dereference and general protection fault (bnc#1200910).
• CVE-2020-36557: Fixed a race condition between the VT_DISALLOCATE ioctl and closing/opening of TTYs could lead to a use-after-free (bnc#1201429).
• CVE-2022-21505: Fixed kexec lockdown bypass with IMA policy (bsc#1201458).
• CVE-2021-33656: Fixed memory out of bounds write related to ioctl cmd PIO_FONT (bnc#1201636).
• CVE-2021-33655: Fixed out of bounds write with ioctl FBIOPUT_VSCREENINFO (bnc#1201635).
• CVE-2022-1462: Fixed an out-of-bounds read flaw in the TTY subsystem (bnc#1198829).
• CVE-2022-1116: Fixed a integer overflow vulnerability in io_uring which allowed a local attacker to cause memory corruption and escalate privileges to root (bnc#1199647).
• CVE-2022-2318: Fixed a use-after-free vulnerability in the timer handler in Rose subsystem that allowed unprivileged attackers to crash the system (bsc#1201251).
• CVE-2022-26365, CVE-2022-33740, CVE-2022-33741, CVE-2022-33742: Fixed multiple potential data leaks with Block and Network devices when using untrusted backends (bsc#1200762).

The following non-security bugs were fixed:

• Fix bsc#1201644, bsc#1201664, bsc#1201672, bsc#1201673, bsc#1201676 All are reports of the same problem - the IBRS_* regs push/popping was wrong but it needs 1b331eeea7b8 ('x86/entry: Remove skip_r11rcx') too.
• ACPI: APEI: Better fix to avoid spamming the console with old error logs (git-fixes).
• ACPI: CPPC: Do not prevent CPPC from working in the future (git-fixes).
• ACPI: video: Shortening quirk list by identifying Clevo by board_name only (git-fixes).
• ALSA: hda - Add fixup for Dell Latitidue E5430 (git-fixes).
• ALSA: hda/conexant: Apply quirk for another HP ProDesk 600 G3 model (git-fixes).
• ALSA: hda/realtek - Enable the headset-mic on a Xiaomi's laptop (git-fixes).
• ALSA: hda/realtek - Fix headset mic problem for a HP machine with alc221 (git-fixes).
• ALSA: hda/realtek - Fix headset mic problem for a HP machine with alc671 (git-fixes).
• ASoC: Intel: Skylake: Correct the handling of fmt_config flexible array (git-fixes).
• ASoC: Intel: Skylake: Correct the ssp rate discovery in skl_get_ssp_clks() (git-fixes).
• ASoC: Remove unused hw_write_t type (git-fixes).
• ASoC: cs47l15: Fix event generation for low power mux control (git-fixes).
• ASoC: madera: Fix event generation for OUT1 demux (git-fixes).
• ASoC: madera: Fix event generation for rate controls (git-fixes).
• ASoC: ops: Fix off by one in range control validation (git-fixes).
• ASoC: sgtl5000: Fix noise on shutdown/remove (git-fixes).
• ASoC: wm5110: Fix DRE control (git-fixes).
• Bluetooth: L2CAP: Fix use-after-free caused by l2cap_chan_put (git-fixes).
• Bluetooth: hci_intel: Add check for platform_driver_register (git-fixes).
• Fixed a regression where smart batteries would not be detected on Mac (bsc#1201206).
• Fixed an issue where qla2xxx would prevent nvme port discovery (bsc#1200651 bsc#1200644 bsc#1201954 bsc#1201958).
• FDDI: defxx: Bail out gracefully with unassigned PCI resource for CSR (git-fixes).
• FDDI: defxx: Make MMIO the configuration default except for EISA (git-fixes).
• Fix 1201644, 1201664, 1201672, 1201673, 1201676 All are reports of the…

This update for xen fixes the following issues:

• CVE-2022-33746: Fixed DoS due to excessively long P2M pool freeing (bsc#1203806).
• CVE-2022-33748: Fixed DoS due to race in locking (bsc#1203807).
• CVE-2022-26365: Fixed issue where Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (bsc#1200762).
• CVE-2022-33740: Fixed issue where Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (bsc#1200762).
• CVE-2022-33741: Fixed issue where data residing in the same 4K page as data shared with a backend was being accessible by such backend (bsc#1200762).
• CVE-2022-33742: Fixed issue where data residing in the same 4K page as data shared with a backend was being accessible by such backend (bsc#1200762).
• CVE-2022-33745: Fixed an insufficient TLB flush for x86 PV guests in shadow mode (bsc#1201394).
• CVE-2021-28689: Fixed speculative vulnerabilities with bare (non-shim) 32-bit PV guests (bsc#1185104).

Bugfixes:

• Fixed logic error in built-in default of max_event_channels (bsc#1167608, bsc#1201631).
• Fixed issue where dom0 fails to boot with constrained vcpus and nodes (bsc#1197081).
• Included upstream bugfixes (bsc#1027519).

This update for xen fixes the following issues:

• CVE-2022-26365: Fixed issue where Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (bsc#1200762).
• CVE-2022-33740: Fixed issue where Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (bsc#1200762).
• CVE-2022-33741: Fixed issue where data residing in the same 4K page as data shared with a backend was being accessible by such backend (bsc#1200762).
• CVE-2022-33742: Fixed issue where data residing in the same 4K page as data shared with a backend was being accessible by such backend (bsc#1200762).
• CVE-2022-33746: Fixed DoS due to excessively long P2M pool freeing (bsc#1203806).
• CVE-2021-28689: Fixed speculative vulnerabilities with bare (non-shim) 32-bit PV guests (bsc#1185104).
• CVE-2022-33748: Fixed DoS due to race in locking (bsc#1203807).

This update for xen fixes the following issues:

• CVE-2022-33746: Fixed DoS due to excessively long P2M pool freeing (bsc#1203806).
• CVE-2022-33748: Fixed DoS due to race in locking (bsc#1203807).
• CVE-2021-28689: Fixed speculative vulnerabilities with bare (non-shim) 32-bit PV guests (bsc#1185104).
• CVE-2022-42311, CVE-2022-42312, CVE-2022-42313, CVE-2022-42314, CVE-2022-42315, CVE-2022-42316, CVE-2022-42317, CVE-2022-42318: xen: Xenstore: Guests can let xenstored run out of memory (bsc#1204482)
• CVE-2022-42309: xen: Xenstore: Guests can crash xenstored (bsc#1204485)
• CVE-2022-42310: xen: Xenstore: Guests can create orphaned Xenstore nodes (bsc#1204487)
• CVE-2022-42319: xen: Xenstore: Guests can cause Xenstore to not free temporary memory (bsc#1204488)
• CVE-2022-42320: xen: Xenstore: Guests can get access to Xenstore nodes of deleted domains (bsc#1204489)
• CVE-2022-42321: xen: Xenstore: Guests can crash xenstored via exhausting the stack (bsc#1204490)
• CVE-2022-42322,CVE-2022-42323: xen: Xenstore: cooperating guests can create arbitrary numbers of nodes (bsc#1204494)
• CVE-2022-42325,CVE-2022-42326: xen: Xenstore: Guests can create arbitray number of nodes via transactions (bsc#1204496)
• CVE-2022-26363,CVE-2022-26364: xen: Insufficient care with non-coherent mappings (bsc#1199966).
• CVE-2022-26365,CVE-2022-33740,CVE-2022-33741,CVE-2022-33742: xen: Linux disk/nic frontends data leaks (bsc#1200762).
• xen: Frontends vulnerable to backends (bsc#1193923).

Roger Pau Monné discovered that the Xen virtual block driver in the Linux kernel did not properly initialize memory pages to be used for shared communication with the backend. A local attacker could use this to expose sensitive information (guest kernel memory). (CVE-2022-26365)

Roger Pau Monné discovered that the Xen paravirtualization frontend in the Linux kernel did not properly initialize memory pages to be used for shared communication with the backend. A local attacker could use this to expose sensitive information (guest kernel memory). (CVE-2022-33740)

It was discovered that the Xen paravirtualization frontend in the Linux kernel incorrectly shared unrelated data when communicating with certain backends. A local attacker could use this to cause a denial of service (guest crash) or expose sensitive information (guest kernel memory). (CVE-2022-33741)

Roger Pau Monné discovered that the Xen virtual block driver in the Linux kernel did not properly initialize memory pages to be used for shared communication with the backend. A local attacker could use this to expose sensitive information (guest kernel memory). (CVE-2022-26365)

Roger Pau Monné discovered that the Xen paravirtualization frontend in the Linux kernel did not properly initialize memory pages to be used for shared communication with the backend. A local attacker could use this to expose sensitive information (guest kernel memory). (CVE-2022-33740)

It was discovered that the Xen paravirtualization frontend in the Linux kernel incorrectly shared unrelated data when communicating with certain backends. A local attacker could use this to cause a denial of service (guest crash) or expose sensitive information (guest kernel memory). (CVE-2022-33741)

Roger Pau Monné discovered that the Xen virtual block driver in the Linux kernel did not properly initialize memory pages to be used for shared communication with the backend. A local attacker could use this to expose sensitive information (guest kernel memory). (CVE-2022-26365)

Roger Pau Monné discovered that the Xen paravirtualization frontend in the Linux kernel did not properly initialize memory pages to be used for shared communication with the backend. A local attacker could use this to expose sensitive information (guest kernel memory). (CVE-2022-33740)

It was discovered that the Xen paravirtualization frontend in the Linux kernel incorrectly shared unrelated data when communicating with certain backends. A local attacker could use this to cause a denial of service (guest crash) or expose sensitive information (guest kernel memory). (CVE-2022-33741)

Asaf Modelevsky discovered that the Intel(R) 10GbE PCI Express (ixgbe) Ethernet driver for the Linux kernel performed insufficient control flow management. A local attacker could possibly use this to cause a denial of service. (CVE-2021-33061)

It was discovered that the framebuffer driver on the Linux kernel did not verify size limits when changing font or screen size, leading to an out-of- bounds write. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-33655)

Moshe Kol, Amit Klein and Yossi Gilad discovered that the IP implementation in the Linux kernel did not provide sufficient randomization when calculating port offsets. An attacker could possibly use this to expose sensitive information. (CVE-2022-1012, CVE-2022-32296)

Norbert Slusarek discovered that a race condition existed in the perf subsystem in the Linux kernel, resulting in a use-after-free vulnerability. A privileged local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-1729)

Qiuhao Li, Gaoning Pan, and Yongkang Jia discovered that the KVM hypervisor implementation in the Linux kernel did not properly handle an illegal instruction in a guest, resulting in a null pointer dereference. An attacker in a guest VM could use this to cause a denial of service (system crash) in the host OS. (CVE-2022-1852)

It was discovered that the UDF file system implementation in the Linux kernel contained an out-of-bounds write vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-1943)

Gerald Lee discovered that the NTFS file system implementation in the Linux kernel did not properly handle certain error conditions, leading to a use- after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2022-1973)

Duoming Zhou discovered that race conditions existed in the timer handling implementation of the Linux kernel's Rose X.25 protocol layer, resulting in use-after-free vulnerabilities. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-2318)

It was discovered that the device-mapper verity (dm-verity) driver in the Linux kernel did not properly verify targets being loaded into the device- mapper table. A privileged attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-2503)

Roger Pau Monné discovered that the Xen virtual block driver in the Linux kernel did not properly initialize memory pages to be used for shared communication with the backend. A local attacker could use this to expose sensitive information (guest kernel memory). (CVE-2022-26365)

Zheyu Ma discovered that the Intel iSMT SMBus host controller driver in the Linux kernel contained an out-of-bounds write vulnerability. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-2873)

Selim Enes Karaduman discovered that a race condition existed in the pipe buffers implementation of the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly escalate privileges. (CVE-2022-2959)

Roger Pau Monné discovered that the Xen paravirtualization frontend in the Linux kernel did not properly initialize memory pages to be used for shared communication with the backend. A local attacker could use this to expose sensitive information (guest kernel memory). (CVE-2022-33740)

It was discovered that the Xen paravirtualization frontend in the Linux kernel incorrectly shared unrelated data when communicating with certain backends. A local attacker could use this to cause a denial of service (guest crash) or expose sensitive information (guest kernel memory). (CVE-2022-33741, CVE-2022-33742)

Jan Beulich discovered that the Xen network device frontend driver in…

It was discovered that the framebuffer driver on the Linux kernel did not verify size limits when changing font or screen size, leading to an out-of- bounds write. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-33655)

Duoming Zhou discovered that race conditions existed in the timer handling implementation of the Linux kernel's Rose X.25 protocol layer, resulting in use-after-free vulnerabilities. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-2318)

Roger Pau Monné discovered that the Xen virtual block driver in the Linux kernel did not properly initialize memory pages to be used for shared communication with the backend. A local attacker could use this to expose sensitive information (guest kernel memory). (CVE-2022-26365)

Roger Pau Monné discovered that the Xen paravirtualization frontend in the Linux kernel did not properly initialize memory pages to be used for shared communication with the backend. A local attacker could use this to expose sensitive information (guest kernel memory). (CVE-2022-33740)

It was discovered that the Xen paravirtualization frontend in the Linux kernel incorrectly shared unrelated data when communicating with certain backends. A local attacker could use this to cause a denial of service (guest crash) or expose sensitive information (guest kernel memory). (CVE-2022-33741, CVE-2022-33742)

Jan Beulich discovered that the Xen network device frontend driver in the Linux kernel incorrectly handled socket buffers (skb) references when communicating with certain backends. A local attacker could use this to cause a denial of service (guest crash). (CVE-2022-33743)

Oleksandr Tyshchenko discovered that the Xen paravirtualization platform in the Linux kernel on ARM platforms contained a race condition in certain situations. An attacker in a guest VM could use this to cause a denial of service in the host OS. (CVE-2022-33744)

It was discovered that the virtio RPMSG bus driver in the Linux kernel contained a double-free vulnerability in certain error conditions. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-34494, CVE-2022-34495)

Domingo Dirutigliano and Nicola Guerrera discovered that the netfilter subsystem in the Linux kernel did not properly handle rules that truncated packets below the packet header size. When such rules are in place, a remote attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-36946)

It was discovered that the framebuffer driver on the Linux kernel did not verify size limits when changing font or screen size, leading to an out-of- bounds write. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-33655)

Duoming Zhou discovered that race conditions existed in the timer handling implementation of the Linux kernel's Rose X.25 protocol layer, resulting in use-after-free vulnerabilities. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-2318)

Roger Pau Monné discovered that the Xen virtual block driver in the Linux kernel did not properly initialize memory pages to be used for shared communication with the backend. A local attacker could use this to expose sensitive information (guest kernel memory). (CVE-2022-26365)

Roger Pau Monné discovered that the Xen paravirtualization frontend in the Linux kernel did not properly initialize memory pages to be used for shared communication with the backend. A local attacker could use this to expose sensitive information (guest kernel memory). (CVE-2022-33740)

It was discovered that the Xen paravirtualization frontend in the Linux kernel incorrectly shared unrelated data when communicating with certain backends. A local attacker could use this to cause a denial of service (guest crash) or expose sensitive information (guest kernel memory). (CVE-2022-33741, CVE-2022-33742)

Jan Beulich discovered that the Xen network device frontend driver in the Linux kernel incorrectly handled socket buffers (skb) references when communicating with certain backends. A local attacker could use this to cause a denial of service (guest crash). (CVE-2022-33743)

Oleksandr Tyshchenko discovered that the Xen paravirtualization platform in the Linux kernel on ARM platforms contained a race condition in certain situations. An attacker in a guest VM could use this to cause a denial of service in the host OS. (CVE-2022-33744)

It was discovered that the virtio RPMSG bus driver in the Linux kernel contained a double-free vulnerability in certain error conditions. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-34494, CVE-2022-34495)

Domingo Dirutigliano and Nicola Guerrera discovered that the netfilter subsystem in the Linux kernel did not properly handle rules that truncated packets below the packet header size. When such rules are in place, a remote attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-36946)

It was discovered that the framebuffer driver on the Linux kernel did not verify size limits when changing font or screen size, leading to an out-of- bounds write. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-33655)

Duoming Zhou discovered that race conditions existed in the timer handling implementation of the Linux kernel's Rose X.25 protocol layer, resulting in use-after-free vulnerabilities. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-2318)

Roger Pau Monné discovered that the Xen virtual block driver in the Linux kernel did not properly initialize memory pages to be used for shared communication with the backend. A local attacker could use this to expose sensitive information (guest kernel memory). (CVE-2022-26365)

Roger Pau Monné discovered that the Xen paravirtualization frontend in the Linux kernel did not properly initialize memory pages to be used for shared communication with the backend. A local attacker could use this to expose sensitive information (guest kernel memory). (CVE-2022-33740)

It was discovered that the Xen paravirtualization frontend in the Linux kernel incorrectly shared unrelated data when communicating with certain backends. A local attacker could use this to cause a denial of service (guest crash) or expose sensitive information (guest kernel memory). (CVE-2022-33741, CVE-2022-33742)

Jan Beulich discovered that the Xen network device frontend driver in the Linux kernel incorrectly handled socket buffers (skb) references when communicating with certain backends. A local attacker could use this to cause a denial of service (guest crash). (CVE-2022-33743)

Oleksandr Tyshchenko discovered that the Xen paravirtualization platform in the Linux kernel on ARM platforms contained a race condition in certain situations. An attacker in a guest VM could use this to cause a denial of service in the host OS. (CVE-2022-33744)

It was discovered that the virtio RPMSG bus driver in the Linux kernel contained a double-free vulnerability in certain error conditions. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-34494, CVE-2022-34495)

Domingo Dirutigliano and Nicola Guerrera discovered that the netfilter subsystem in the Linux kernel did not properly handle rules that truncated packets below the packet header size. When such rules are in place, a remote attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-36946)

It was discovered that the framebuffer driver on the Linux kernel did not verify size limits when changing font or screen size, leading to an out-of- bounds write. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-33655)

Duoming Zhou discovered that race conditions existed in the timer handling implementation of the Linux kernel's Rose X.25 protocol layer, resulting in use-after-free vulnerabilities. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-2318)

Roger Pau Monné discovered that the Xen virtual block driver in the Linux kernel did not properly initialize memory pages to be used for shared communication with the backend. A local attacker could use this to expose sensitive information (guest kernel memory). (CVE-2022-26365)

Roger Pau Monné discovered that the Xen paravirtualization frontend in the Linux kernel did not properly initialize memory pages to be used for shared communication with the backend. A local attacker could use this to expose sensitive information (guest kernel memory). (CVE-2022-33740)

It was discovered that the Xen paravirtualization frontend in the Linux kernel incorrectly shared unrelated data when communicating with certain backends. A local attacker could use this to cause a denial of service (guest crash) or expose sensitive information (guest kernel memory). (CVE-2022-33741, CVE-2022-33742)

Jan Beulich discovered that the Xen network device frontend driver in the Linux kernel incorrectly handled socket buffers (skb) references when communicating with certain backends. A local attacker could use this to cause a denial of service (guest crash). (CVE-2022-33743)

Oleksandr Tyshchenko discovered that the Xen paravirtualization platform in the Linux kernel on ARM platforms contained a race condition in certain situations. An attacker in a guest VM could use this to cause a denial of service in the host OS. (CVE-2022-33744)

It was discovered that the virtio RPMSG bus driver in the Linux kernel contained a double-free vulnerability in certain error conditions. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-34494, CVE-2022-34495)

Domingo Dirutigliano and Nicola Guerrera discovered that the netfilter subsystem in the Linux kernel did not properly handle rules that truncated packets below the packet header size. When such rules are in place, a remote attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-36946)

It was discovered that the framebuffer driver on the Linux kernel did not verify size limits when changing font or screen size, leading to an out-of- bounds write. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-33655)

Duoming Zhou discovered that race conditions existed in the timer handling implementation of the Linux kernel's Rose X.25 protocol layer, resulting in use-after-free vulnerabilities. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-2318)

Roger Pau Monné discovered that the Xen virtual block driver in the Linux kernel did not properly initialize memory pages to be used for shared communication with the backend. A local attacker could use this to expose sensitive information (guest kernel memory). (CVE-2022-26365)

Roger Pau Monné discovered that the Xen paravirtualization frontend in the Linux kernel did not properly initialize memory pages to be used for shared communication with the backend. A local attacker could use this to expose sensitive information (guest kernel memory). (CVE-2022-33740)

It was discovered that the Xen paravirtualization frontend in the Linux kernel incorrectly shared unrelated data when communicating with certain backends. A local attacker could use this to cause a denial of service (guest crash) or expose sensitive information (guest kernel memory). (CVE-2022-33741, CVE-2022-33742)

Jan Beulich discovered that the Xen network device frontend driver in the Linux kernel incorrectly handled socket buffers (skb) references when communicating with certain backends. A local attacker could use this to cause a denial of service (guest crash). (CVE-2022-33743)

Oleksandr Tyshchenko discovered that the Xen paravirtualization platform in the Linux kernel on ARM platforms contained a race condition in certain situations. An attacker in a guest VM could use this to cause a denial of service in the host OS. (CVE-2022-33744)

It was discovered that the virtio RPMSG bus driver in the Linux kernel contained a double-free vulnerability in certain error conditions. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-34494, CVE-2022-34495)

Domingo Dirutigliano and Nicola Guerrera discovered that the netfilter subsystem in the Linux kernel did not properly handle rules that truncated packets below the packet header size. When such rules are in place, a remote attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-36946)

It was discovered that the framebuffer driver on the Linux kernel did not verify size limits when changing font or screen size, leading to an out-of- bounds write. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-33655)

Duoming Zhou discovered that race conditions existed in the timer handling implementation of the Linux kernel's Rose X.25 protocol layer, resulting in use-after-free vulnerabilities. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-2318)

Roger Pau Monné discovered that the Xen virtual block driver in the Linux kernel did not properly initialize memory pages to be used for shared communication with the backend. A local attacker could use this to expose sensitive information (guest kernel memory). (CVE-2022-26365)

Roger Pau Monné discovered that the Xen paravirtualization frontend in the Linux kernel did not properly initialize memory pages to be used for shared communication with the backend. A local attacker could use this to expose sensitive information (guest kernel memory). (CVE-2022-33740)

It was discovered that the Xen paravirtualization frontend in the Linux kernel incorrectly shared unrelated data when communicating with certain backends. A local attacker could use this to cause a denial of service (guest crash) or expose sensitive information (guest kernel memory). (CVE-2022-33741, CVE-2022-33742)

Jan Beulich discovered that the Xen network device frontend driver in the Linux kernel incorrectly handled socket buffers (skb) references when communicating with certain backends. A local attacker could use this to cause a denial of service (guest crash). (CVE-2022-33743)

Oleksandr Tyshchenko discovered that the Xen paravirtualization platform in the Linux kernel on ARM platforms contained a race condition in certain situations. An attacker in a guest VM could use this to cause a denial of service in the host OS. (CVE-2022-33744)

It was discovered that the virtio RPMSG bus driver in the Linux kernel contained a double-free vulnerability in certain error conditions. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-34494, CVE-2022-34495)

Domingo Dirutigliano and Nicola Guerrera discovered that the netfilter subsystem in the Linux kernel did not properly handle rules that truncated packets below the packet header size. When such rules are in place, a remote attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-36946)

It was discovered that the framebuffer driver on the Linux kernel did not verify size limits when changing font or screen size, leading to an out-of- bounds write. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-33655)

Duoming Zhou discovered that race conditions existed in the timer handling implementation of the Linux kernel's Rose X.25 protocol layer, resulting in use-after-free vulnerabilities. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-2318)

Roger Pau Monné discovered that the Xen virtual block driver in the Linux kernel did not properly initialize memory pages to be used for shared communication with the backend. A local attacker could use this to expose sensitive information (guest kernel memory). (CVE-2022-26365)

Roger Pau Monné discovered that the Xen paravirtualization frontend in the Linux kernel did not properly initialize memory pages to be used for shared communication with the backend. A local attacker could use this to expose sensitive information (guest kernel memory). (CVE-2022-33740)

It was discovered that the Xen paravirtualization frontend in the Linux kernel incorrectly shared unrelated data when communicating with certain backends. A local attacker could use this to cause a denial of service (guest crash) or expose sensitive information (guest kernel memory). (CVE-2022-33741, CVE-2022-33742)

Jan Beulich discovered that the Xen network device frontend driver in the Linux kernel incorrectly handled socket buffers (skb) references when communicating with certain backends. A local attacker could use this to cause a denial of service (guest crash). (CVE-2022-33743)

Oleksandr Tyshchenko discovered that the Xen paravirtualization platform in the Linux kernel on ARM platforms contained a race condition in certain situations. An attacker in a guest VM could use this to cause a denial of service in the host OS. (CVE-2022-33744)

It was discovered that the virtio RPMSG bus driver in the Linux kernel contained a double-free vulnerability in certain error conditions. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-34494, CVE-2022-34495)

Domingo Dirutigliano and Nicola Guerrera discovered that the netfilter subsystem in the Linux kernel did not properly handle rules that truncated packets below the packet header size. When such rules are in place, a remote attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-36946)

It was discovered that the BPF verifier in the Linux kernel did not properly handle internal data structures. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2021-4159)

It was discovered that an out-of-bounds write vulnerability existed in the Video for Linux 2 (V4L2) implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-20369)

Duoming Zhou discovered that race conditions existed in the timer handling implementation of the Linux kernel's Rose X.25 protocol layer, resulting in use-after-free vulnerabilities. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-2318)

Roger Pau Monné discovered that the Xen virtual block driver in the Linux kernel did not properly initialize memory pages to be used for shared communication with the backend. A local attacker could use this to expose sensitive information (guest kernel memory). (CVE-2022-26365)

Pawan Kumar Gupta, Alyssa Milburn, Amit Peled, Shani Rehana, Nir Shildan and Ariel Sabba discovered that some Intel processors with Enhanced Indirect Branch Restricted Speculation (eIBRS) did not properly handle RET instructions after a VM exits. A local attacker could potentially use this to expose sensitive information. (CVE-2022-26373)

Eric Biggers discovered that a use-after-free vulnerability existed in the io_uring subsystem in the Linux kernel. A local attacker could possibly use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-3176)

Roger Pau Monné discovered that the Xen paravirtualization frontend in the Linux kernel did not properly initialize memory pages to be used for shared communication with the backend. A local attacker could use this to expose sensitive information (guest kernel memory). (CVE-2022-33740)

It was discovered that the Xen paravirtualization frontend in the Linux kernel incorrectly shared unrelated data when communicating with certain backends. A local attacker could use this to cause a denial of service (guest crash) or expose sensitive information (guest kernel memory). (CVE-2022-33741, CVE-2022-33742)

Oleksandr Tyshchenko discovered that the Xen paravirtualization platform in the Linux kernel on ARM platforms contained a race condition in certain situations. An attacker in a guest VM could use this to cause a denial of service in the host OS. (CVE-2022-33744)

It was discovered that the Netlink Transformation (XFRM) subsystem in the Linux kernel contained a reference counting error. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-36879)

It was discovered that the SUNRPC RDMA protocol implementation in the Linux kernel did not properly calculate the header size of a RPC message payload. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2022-0812)

Moshe Kol, Amit Klein and Yossi Gilad discovered that the IP implementation in the Linux kernel did not provide sufficient randomization when calculating port offsets. An attacker could possibly use this to expose sensitive information. (CVE-2022-1012, CVE-2022-32296)

Duoming Zhou discovered that race conditions existed in the timer handling implementation of the Linux kernel's Rose X.25 protocol layer, resulting in use-after-free vulnerabilities. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-2318)

Roger Pau Monné discovered that the Xen virtual block driver in the Linux kernel did not properly initialize memory pages to be used for shared communication with the backend. A local attacker could use this to expose sensitive information (guest kernel memory). (CVE-2022-26365)

Roger Pau Monné discovered that the Xen paravirtualization frontend in the Linux kernel did not properly initialize memory pages to be used for shared communication with the backend. A local attacker could use this to expose sensitive information (guest kernel memory). (CVE-2022-33740)

It was discovered that the Xen paravirtualization frontend in the Linux kernel incorrectly shared unrelated data when communicating with certain backends. A local attacker could use this to cause a denial of service (guest crash) or expose sensitive information (guest kernel memory). (CVE-2022-33741, CVE-2022-33742)

Oleksandr Tyshchenko discovered that the Xen paravirtualization platform in the Linux kernel on ARM platforms contained a race condition in certain situations. An attacker in a guest VM could use this to cause a denial of service in the host OS. (CVE-2022-33744)

It was discovered that the SUNRPC RDMA protocol implementation in the Linux kernel did not properly calculate the header size of a RPC message payload. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2022-0812)

Moshe Kol, Amit Klein and Yossi Gilad discovered that the IP implementation in the Linux kernel did not provide sufficient randomization when calculating port offsets. An attacker could possibly use this to expose sensitive information. (CVE-2022-1012, CVE-2022-32296)

Duoming Zhou discovered that race conditions existed in the timer handling implementation of the Linux kernel's Rose X.25 protocol layer, resulting in use-after-free vulnerabilities. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-2318)

Roger Pau Monné discovered that the Xen virtual block driver in the Linux kernel did not properly initialize memory pages to be used for shared communication with the backend. A local attacker could use this to expose sensitive information (guest kernel memory). (CVE-2022-26365)

Roger Pau Monné discovered that the Xen paravirtualization frontend in the Linux kernel did not properly initialize memory pages to be used for shared communication with the backend. A local attacker could use this to expose sensitive information (guest kernel memory). (CVE-2022-33740)

It was discovered that the Xen paravirtualization frontend in the Linux kernel incorrectly shared unrelated data when communicating with certain backends. A local attacker could use this to cause a denial of service (guest crash) or expose sensitive information (guest kernel memory). (CVE-2022-33741, CVE-2022-33742)

Oleksandr Tyshchenko discovered that the Xen paravirtualization platform in the Linux kernel on ARM platforms contained a race condition in certain situations. An attacker in a guest VM could use this to cause a denial of service in the host OS. (CVE-2022-33744)

It was discovered that the BPF verifier in the Linux kernel did not properly handle internal data structures. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2021-4159)

It was discovered that an out-of-bounds write vulnerability existed in the Video for Linux 2 (V4L2) implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-20369)

Duoming Zhou discovered that race conditions existed in the timer handling implementation of the Linux kernel's Rose X.25 protocol layer, resulting in use-after-free vulnerabilities. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-2318)

Roger Pau Monné discovered that the Xen virtual block driver in the Linux kernel did not properly initialize memory pages to be used for shared communication with the backend. A local attacker could use this to expose sensitive information (guest kernel memory). (CVE-2022-26365)

Pawan Kumar Gupta, Alyssa Milburn, Amit Peled, Shani Rehana, Nir Shildan and Ariel Sabba discovered that some Intel processors with Enhanced Indirect Branch Restricted Speculation (eIBRS) did not properly handle RET instructions after a VM exits. A local attacker could potentially use this to expose sensitive information. (CVE-2022-26373)

Eric Biggers discovered that a use-after-free vulnerability existed in the io_uring subsystem in the Linux kernel. A local attacker could possibly use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-3176)

Roger Pau Monné discovered that the Xen paravirtualization frontend in the Linux kernel did not properly initialize memory pages to be used for shared communication with the backend. A local attacker could use this to expose sensitive information (guest kernel memory). (CVE-2022-33740)

It was discovered that the Xen paravirtualization frontend in the Linux kernel incorrectly shared unrelated data when communicating with certain backends. A local attacker could use this to cause a denial of service (guest crash) or expose sensitive information (guest kernel memory). (CVE-2022-33741, CVE-2022-33742)

Oleksandr Tyshchenko discovered that the Xen paravirtualization platform in the Linux kernel on ARM platforms contained a race condition in certain situations. An attacker in a guest VM could use this to cause a denial of service in the host OS. (CVE-2022-33744)

It was discovered that the Netlink Transformation (XFRM) subsystem in the Linux kernel contained a reference counting error. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-36879)

It was discovered that the SUNRPC RDMA protocol implementation in the Linux kernel did not properly calculate the header size of a RPC message payload. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2022-0812)

Moshe Kol, Amit Klein and Yossi Gilad discovered that the IP implementation in the Linux kernel did not provide sufficient randomization when calculating port offsets. An attacker could possibly use this to expose sensitive information. (CVE-2022-1012, CVE-2022-32296)

Duoming Zhou discovered that race conditions existed in the timer handling implementation of the Linux kernel's Rose X.25 protocol layer, resulting in use-after-free vulnerabilities. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-2318)

Roger Pau Monné discovered that the Xen virtual block driver in the Linux kernel did not properly initialize memory pages to be used for shared communication with the backend. A local attacker could use this to expose sensitive information (guest kernel memory). (CVE-2022-26365)

Roger Pau Monné discovered that the Xen paravirtualization frontend in the Linux kernel did not properly initialize memory pages to be used for shared communication with the backend. A local attacker could use this to expose sensitive information (guest kernel memory). (CVE-2022-33740)

It was discovered that the Xen paravirtualization frontend in the Linux kernel incorrectly shared unrelated data when communicating with certain backends. A local attacker could use this to cause a denial of service (guest crash) or expose sensitive information (guest kernel memory). (CVE-2022-33741, CVE-2022-33742)

Oleksandr Tyshchenko discovered that the Xen paravirtualization platform in the Linux kernel on ARM platforms contained a race condition in certain situations. An attacker in a guest VM could use this to cause a denial of service in the host OS. (CVE-2022-33744)

It was discovered that the SUNRPC RDMA protocol implementation in the Linux kernel did not properly calculate the header size of a RPC message payload. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2022-0812)

Moshe Kol, Amit Klein and Yossi Gilad discovered that the IP implementation in the Linux kernel did not provide sufficient randomization when calculating port offsets. An attacker could possibly use this to expose sensitive information. (CVE-2022-1012, CVE-2022-32296)

Duoming Zhou discovered that race conditions existed in the timer handling implementation of the Linux kernel's Rose X.25 protocol layer, resulting in use-after-free vulnerabilities. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-2318)

Roger Pau Monné discovered that the Xen virtual block driver in the Linux kernel did not properly initialize memory pages to be used for shared communication with the backend. A local attacker could use this to expose sensitive information (guest kernel memory). (CVE-2022-26365)

Roger Pau Monné discovered that the Xen paravirtualization frontend in the Linux kernel did not properly initialize memory pages to be used for shared communication with the backend. A local attacker could use this to expose sensitive information (guest kernel memory). (CVE-2022-33740)

It was discovered that the Xen paravirtualization frontend in the Linux kernel incorrectly shared unrelated data when communicating with certain backends. A local attacker could use this to cause a denial of service (guest crash) or expose sensitive information (guest kernel memory). (CVE-2022-33741, CVE-2022-33742)

Oleksandr Tyshchenko discovered that the Xen paravirtualization platform in the Linux kernel on ARM platforms contained a race condition in certain situations. An attacker in a guest VM could use this to cause a denial of service in the host OS. (CVE-2022-33744)