CVE-2021-0920

In unix_scm_to_skb of af_unix.c, there is a possible use after free bug due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-196926917References: Upstream kernel

The Linux Kernel, the operating system core itself.

Security Fix(es):

A memory leak flaw in the Linux kernel's hugetlbfs memory usage was found in the way the user maps some regions of memory twice using shmget() which are aligned to PUD alignment with the fault of some of the memory pages. A local user could use this flaw to get unauthorized access to some data.(CVE-2021-4002)

In unix_scm_to_skb of af_unix.c, there is a possible use after free bug due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-196926917References: Upstream kernel(CVE-2021-0920)

A vulnerability was found in the fs/inode.c:inode_init_owner() function logic of the LInux kernel that allows local users to create files for the XFS file-system with an unintended group ownership and with group execution and SGID permission bits set, in a scenario where a directory is SGID and belongs to a certain group and is writable by a user who is not a member of this group. This can lead to excessive permissions granted in case when they should not. This vulnerability is similar to the previous CVE-2018-13405 and adds the missed fix for the XFS.(CVE-2021-4037)

A race condition accessing file object in the Linux kernel OverlayFS subsystem was found in the way users do rename in specific way with OverlayFS. A local user could use this flaw to crash the system.(CVE-2021-20321)

In __configfs_open_file of file.c, there is a possible use-after-free due to improper locking. This could lead to local escalation of privilege in the kernel with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-174049066References: Upstream kernel(CVE-2021-39656)

In gadget_dev_desc_UDC_show of configfs.c, there is a possible disclosure of kernel heap memory due to a race condition. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-160822094References: Upstream kernel(CVE-2021-39648)

The issue reported to the Linux security team allowed one to read and/or write up to 65kB of kernel memory past buffer boundaries by exploiting lack of limiting of the usb control transfer request wLength in certain gadget functions.(CVE-2021-39685)

pep_sock_accept in net/phonet/pep.c in the Linux kernel through 5.15.8 has a refcount leak.(CVE-2021-45095)

A vulnerability was found in btrfs_alloc_tree_b in fs/btrfs/extent-tree.c in the Linux kernel due to an improper lock operation in btrfs. In this flaw, a user with a local privilege may cause a denial of service (DOS) due to a deadlock problem.(CVE-2021-4149)

In the Linux kernel through 5.8.7, local attackers able to inject conntrack netlink configuration could overflow a local buffer, causing crashes or triggering use of incorrect protocol numbers in ctnetlink_parse_tuple_filter in net/netfilter/nf_conntrack_netlink.c, aka CID-1cc5ef91d2ff.(CVE-2020-25211)

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

• kernel: improper initialization of the "flags" member of the new pipe_buffer (CVE-2022-0847)

• kernel: Use After Free in unix_gc() which could result in a local privilege escalation (CVE-2021-0920)

• kernel: local privilege escalation by exploiting the fsconfig syscall parameter leads to container breakout (CVE-2021-4154)

• kernel: possible privileges escalation due to missing TLB flush (CVE-2022-0330)

• kernel: remote stack overflow via kernel panic on systems using TIPC may lead to DoS (CVE-2022-0435)

• kernel: cgroups v1 release_agent feature may allow privilege escalation (CVE-2022-0492)

• kernel: failing usercopy allows for use-after-free exploitation (CVE-2022-22942)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es):

• kernel symbol '__rt_mutex_init' is exported GPL-only in kernel 4.18.0-348.2.1.rt7.132.el8_5 (BZ#2038423)

• kernel-rt: update RT source tree to the Rocky Linux-8.5.z3 source tree (BZ#2045589)

The kernel packages contain the Linux kernel, the core of any Linux operating system.

The following packages have been upgraded to a later upstream version: kernel (4.18.0). (BZ#2036888)

Security Fix(es):

• kernel: improper initialization of the "flags" member of the new pipe_buffer (CVE-2022-0847)

• kernel: Use After Free in unix_gc() which could result in a local privilege escalation (CVE-2021-0920)

• kernel: local privilege escalation by exploiting the fsconfig syscall parameter leads to container breakout (CVE-2021-4154)

• kernel: possible privileges escalation due to missing TLB flush (CVE-2022-0330)

• kernel: remote stack overflow via kernel panic on systems using TIPC may lead to DoS (CVE-2022-0435)

• kernel: cgroups v1 release_agent feature may allow privilege escalation (CVE-2022-0492)

• kernel: missing check in ioctl allows kernel memory read/write (CVE-2022-0516)

• kernel: failing usercopy allows for use-after-free exploitation (CVE-2022-22942)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es):

• Intel QAT Kernel power up fix (BZ#2016437)

• Rocky Linux8.4 seeing scsi_dma_map failed with mpt3sas driver and affecting performance (BZ#2018928)

• [Lenovo 8.4 bug] audio_HDMI certification failed on Rocky Linux 8.4GA (No hdmi out) (BZ#2027335)

• [Rocky Linux-8.5][4.18.0-323.el8.ppc64le][POWER8/9/10] security_flavor mode is not set back to zero post online migration (BZ#2027448)

• iommu/amd: Fix unable to handle page fault due to AVIC (BZ#2030854)

• [Lenovo 8.4 bug]The VGA display shows no signal (black screen) when install Rocky Linux8.4(beta or rc1) in the legacy BIOS mode. (BZ#2034949)

• Double free of kmalloc-64 cache struct ib_port->pkey_group from module ib_core . (BZ#2038724)

• Bus error with huge pages enabled (BZ#2039015)

• Rocky Linux8 - kvm: floating interrupts may get stuck (BZ#2040769)

• Data corruption on small files served by httpd, which is backed by cifs-mount (BZ#2041529)

• Add a net/mlx5 patch for Hardware Offload Fix (BZ#2042663)

• Windows guest random Bsod when 'hv-tlbflush' enlightenment is enabled (BZ#2043237)

• DNS lookup failures when run two times in a row (BZ#2043548)

• net/sched: Fix ct zone matching for invalid conntrack state (BZ#2043550)

• Kernel 4.18.0-348.2.1 secpath_cache memory leak involving strongswan tunnel (BZ#2047427)

• OCP node XFS metadata corruption after numerous reboots (BZ#2049292)

• Broadcom bnxt_re: RDMA stats are not incrementing (BZ#2049684)

• ice: bug fix series for 8.6 (BZ#2051951)

• panic while looking up a symlink due to NULL i_op->get_link (BZ#2052558)

• ceph omnibus backport for Rocky Linux-8.6.0 (BZ#2053725)

• SCTP peel-off with SELinux and containers in OCP (BZ#2054112)

• Selinux is not allowing SCTP connection setup between inter pod communication in enforcing mode (BZ#2054117)

• dnf fails with fsync() over local repository present on CIFS mount point (BZ#2055824)

In unix_scm_to_skb of af_unix.c, there is a possible use after free bug due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-196926917References: Upstream kernel

The kernel packages contain the Linux kernel, the core of any Linux operating system.

The following packages have been upgraded to a later upstream version: kernel (4.18.0). (BZ#2036888)

Security Fix(es):

• kernel: improper initialization of the "flags" member of the new pipe_buffer (CVE-2022-0847)

• kernel: Use After Free in unix_gc() which could result in a local privilege escalation (CVE-2021-0920)

• kernel: local privilege escalation by exploiting the fsconfig syscall parameter leads to container breakout (CVE-2021-4154)

• kernel: possible privileges escalation due to missing TLB flush (CVE-2022-0330)

• kernel: remote stack overflow via kernel panic on systems using TIPC may lead to DoS (CVE-2022-0435)

• kernel: cgroups v1 release_agent feature may allow privilege escalation (CVE-2022-0492)

• kernel: missing check in ioctl allows kernel memory read/write (CVE-2022-0516)

• kernel: failing usercopy allows for use-after-free exploitation (CVE-2022-22942)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es):

• Intel QAT Kernel power up fix (BZ#2016437)

• AlmaLinux8.4 seeing scsi_dma_map failed with mpt3sas driver and affecting performance (BZ#2018928)

• [Lenovo 8.4 bug] audio_HDMI certification failed on AlmaLinux 8.4GA (No hdmi out) (BZ#2027335)

• [AlmaLinux-8.5][4.18.0-323.el8.ppc64le][POWER8/9/10] security_flavor mode is not set back to zero post online migration (BZ#2027448)

• iommu/amd: Fix unable to handle page fault due to AVIC (BZ#2030854)

• [Lenovo 8.4 bug]The VGA display shows no signal (black screen) when install AlmaLinux8.4(beta or rc1) in the legacy BIOS mode. (BZ#2034949)

• Double free of kmalloc-64 cache struct ib_port->pkey_group from module ib_core . (BZ#2038724)

• Bus error with huge pages enabled (BZ#2039015)

• AlmaLinux8 - kvm: floating interrupts may get stuck (BZ#2040769)

• Data corruption on small files served by httpd, which is backed by cifs-mount (BZ#2041529)

• Add a net/mlx5 patch for Hardware Offload Fix (BZ#2042663)

• Windows guest random Bsod when 'hv-tlbflush' enlightenment is enabled (BZ#2043237)

• DNS lookup failures when run two times in a row (BZ#2043548)

• net/sched: Fix ct zone matching for invalid conntrack state (BZ#2043550)

• Kernel 4.18.0-348.2.1 secpath_cache memory leak involving strongswan tunnel (BZ#2047427)

• OCP node XFS metadata corruption after numerous reboots (BZ#2049292)

• Broadcom bnxt_re: RDMA stats are not incrementing (BZ#2049684)

• ice: bug fix series for 8.6 (BZ#2051951)

• panic while looking up a symlink due to NULL i_op->get_link (BZ#2052558)

• ceph omnibus backport for AlmaLinux-8.6.0 (BZ#2053725)

• SCTP peel-off with SELinux and containers in OCP (BZ#2054112)

• Selinux is not allowing SCTP connection setup between inter pod communication in enforcing mode (BZ#2054117)

• dnf fails with fsync() over local repository present on CIFS mount point (BZ#2055824)

In unix_scm_to_skb of af_unix.c, there is a possible use after free bug due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.

• cgroup-v1: Require capabilities to set release_agent [ELSCVE-3555] {CVE-2022-0492}
• xfs: map unwritten blocks in XFS_IOC_{ALLOC,FREE}SP just like fallocate [ELSCVE-3891] {CVE-2021-4155}
• af_unix: fix garbage collect vs MSG_PEEK [ELSCVE-3728] {CVE-2021-0920}
• epoll: Keep a reference on files added to the check list [ELSCVE-3890] {CVE-2020-0466}
• Revert "cipso,calipso: resolve a number of problems with the DOI refcounts"

• cgroup-v1: Require capabilities to set release_agent [ELSCVE-3555] {CVE-2022-0492}
• xfs: map unwritten blocks in XFS_IOC_{ALLOC,FREE}SP just like fallocate [ELSCVE-3891] {CVE-2021-4155}
• af_unix: fix garbage collect vs MSG_PEEK [ELSCVE-3728] {CVE-2021-0920}
• epoll: Keep a reference on files added to the check list [ELSCVE-3890] {CVE-2020-0466}
• Revert "cipso,calipso: resolve a number of problems with the DOI refcounts"

• media: rc: Fix use-after-free bugs caused by ene_tx_irqsim() {CVE-2023-1118}
• net: mpls: fix stale pointer if allocation fails during device rename {CVE-2023-26545}
• net/ulp: prevent ULP without clone op from entering the LISTEN status {CVE-2023-0461}
• Bluetooth: L2CAP: Fix u8 overflow {CVE-2022-45934}
• nfp: fix use-after-free in area_cache_get() {CVE-2022-3545}
• Bluetooth: L2CAP: fix use-after-free in l2cap_conn_del() {CVE-2022-3640}
• mISDN: fix use-after-free bugs in l1oip timer handlers {CVE-2022-3565}
• usb: mon: make mmapped memory read only {CVE-2022-43750}
• ath9k: fix use-after-free in ath9k_hif_usb_rx_cb {CVE-2022-1679}
• netfilter: nf_queue: do not allow packet truncation below transport header offset {CVE-2022-36946}
• netfilter: nf_tables: disallow non-stateful expression in sets earlier {CVE-2022-32250}
• perf: Fix sys_perf_event_open() race against self {CVE-2022-1729}
• openvswitch: fix OOB access in reserve_sfa_size() {CVE-2022-2639}
• can: usb_8dev: usb_8dev_start_xmit(): fix double dev_kfree_skb() in error path {CVE-2022-28388}
• drivers: net: slip: fix NPD bug in sl_tx_timeout() {CVE-2022-41858}
• media: em28xx: initialize refcount before kref_get {CVE-2022-3239}
• can: ems_usb: ems_usb_start_xmit(): fix double dev_kfree_skb() in error path {CVE-2022-28390}
• ptrace: Check PTRACE_O_SUSPEND_SECCOMP permission on PTRACE_SEIZE {CVE-2022-30594}
• af_key: add __GFP_ZERO flag for compose_sadb_supported in function pfkey_register {CVE-2022-1353}
• Bluetooth: sco: Fix lock_sock() blockage by memcpy_from_msg() {CVE-2021-3640}
• igmp: Add ip_mc_list lock in ip_check_mc_rcu {CVE-2022-20141}
• af_unix: fix garbage collect vs MSG_PEEK {CVE-2021-0920}
• r8152: Rate limit overflow messages {CVE-2022-3594}

• media: rc: Fix use-after-free bugs caused by ene_tx_irqsim() {CVE-2023-1118}
• net: mpls: fix stale pointer if allocation fails during device rename {CVE-2023-26545}
• net/ulp: prevent ULP without clone op from entering the LISTEN status {CVE-2023-0461}
• Bluetooth: L2CAP: Fix u8 overflow {CVE-2022-45934}
• nfp: fix use-after-free in area_cache_get() {CVE-2022-3545}
• Bluetooth: L2CAP: fix use-after-free in l2cap_conn_del() {CVE-2022-3640}
• mISDN: fix use-after-free bugs in l1oip timer handlers {CVE-2022-3565}
• usb: mon: make mmapped memory read only {CVE-2022-43750}
• ath9k: fix use-after-free in ath9k_hif_usb_rx_cb {CVE-2022-1679}
• netfilter: nf_queue: do not allow packet truncation below transport header offset {CVE-2022-36946}
• netfilter: nf_tables: disallow non-stateful expression in sets earlier {CVE-2022-32250}
• perf: Fix sys_perf_event_open() race against self {CVE-2022-1729}
• openvswitch: fix OOB access in reserve_sfa_size() {CVE-2022-2639}
• can: usb_8dev: usb_8dev_start_xmit(): fix double dev_kfree_skb() in error path {CVE-2022-28388}
• drivers: net: slip: fix NPD bug in sl_tx_timeout() {CVE-2022-41858}
• media: em28xx: initialize refcount before kref_get {CVE-2022-3239}
• can: ems_usb: ems_usb_start_xmit(): fix double dev_kfree_skb() in error path {CVE-2022-28390}
• ptrace: Check PTRACE_O_SUSPEND_SECCOMP permission on PTRACE_SEIZE {CVE-2022-30594}
• af_key: add __GFP_ZERO flag for compose_sadb_supported in function pfkey_register {CVE-2022-1353}
• Bluetooth: sco: Fix lock_sock() blockage by memcpy_from_msg() {CVE-2021-3640}
• igmp: Add ip_mc_list lock in ip_check_mc_rcu {CVE-2022-20141}
• af_unix: fix garbage collect vs MSG_PEEK {CVE-2021-0920}

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

The following security bugs were fixed:

• CVE-2022-0435: Fixed remote stack overflow in net/tipc module that validate domain record count on input (bsc#1195254).
• CVE-2022-0330: Fixed flush TLBs before releasing backing store (bsc#1194880).
• CVE-2021-45486: Fixed an information leak because the hash table is very small in net/ipv4/route.c (bnc#1194087).
• CVE-2021-45095: Fixed refcount leak in pep_sock_accept in net/phonet/pep.c (bnc#1193867).
• CVE-2021-44733: Fixed a use-after-free exists in drivers/tee/tee_shm.c in the TEE subsystem, that could have occured because of a race condition in tee_shm_get_from_id during an attempt to free a shared memory object (bnc#1193767).
• CVE-2021-43976: Fixed a flaw that could allow an attacker (who can connect a crafted USB device) to cause a denial of service. (bnc#1192847)
• CVE-2021-43975: Fixed a flaw in hw_atl_utils_fw_rpc_wait that could allow an attacker (who can introduce a crafted device) to trigger an out-of-bounds write via a crafted length value. (bsc#1192845)
• CVE-2021-4202: Fixed NFC race condition by adding NCI_UNREG flag (bsc#1194529).
• CVE-2021-4197: Use cgroup open-time credentials for process migraton perm checks (bsc#1194302).
• CVE-2021-4159: Fixed kernel ptr leak vulnerability via BPF in coerce_reg_to_size (bsc#1194227).
• CVE-2021-4149: Fixed btrfs unlock newly allocated extent buffer after error (bsc#1194001).
• CVE-2021-4135: Fixed zero-initialize memory inside netdevsim for new map's value in function nsim_bpf_map_alloc (bsc#1193927).
• CVE-2021-4083: Fixed a read-after-free memory flaw inside the garbage collection for Unix domain socket file handlers when users call close() and fget() simultaneouslyand can potentially trigger a race condition (bnc#1193727).
• CVE-2021-4002: Fixed incorrect TLBs flush in hugetlbfs after huge_pmd_unshare (bsc#1192946).
• CVE-2021-39657: Fixed out of bounds read due to a missing bounds check in ufshcd_eh_device_reset_handler of ufshcd.c. This could lead to local information disclosure with System execution privileges needed (bnc#1193864).
• CVE-2021-39648: Fixed possible disclosure of kernel heap memory due to a race condition in gadget_dev_desc_UDC_show of configfs.c. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation (bnc#1193861).
• CVE-2021-3564: Fixed double-free memory corruption in the Linux kernel HCI device initialization subsystem that could have been used by attaching malicious HCI TTY Bluetooth devices. A local user could use this flaw to crash the system (bnc#1186207).
• CVE-2021-33098: Fixed a potential denial of service in Intel(R) Ethernet ixgbe driver due to improper input validation. (bsc#1192877)
• CVE-2021-28715: Fixed issue with xen/netback to do not queue unlimited number of packages (XSA-392) (bsc#1193442).
• CVE-2021-28714: Fixed issue with xen/netback to handle rx queue stall detection (XSA-392) (bsc#1193442).
• CVE-2021-28713: Fixed issue with xen/console to harden hvc_xen against event channel storms (XSA-391) (bsc#1193440).
• CVE-2021-28712: Fixed issue with xen/netfront to harden netfront against event channel storms (XSA-391) (bsc#1193440).
• CVE-2021-28711: Fixed issue with xen/blkfront to harden blkfront against event channel storms (XSA-391) (bsc#1193440).
• CVE-2021-0935: Fixed possible out of bounds write in ip6_xmit of ip6_output.c due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation (bnc#1192032).
• CVE-2021-0920: Fixed a local privilege escalation due to an use after free bug in unix_gc (bsc#1193731).
• CVE-2020-27820: Fixed a vulnerability where a use-after-frees in nouveau's postclose() handler could happen if removing device (bsc#1179599).
• CVE-2019-15126: Fixed a vulnerability in Broadcom…

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

The following security bugs were fixed:

• CVE-2022-25636: Fixed an issue which allowed a local users to gain privileges because of a heap out-of-bounds write in nf_dup_netdev.c, related to nf_tables_offload (bsc#1196299).
• CVE-2022-26490: Fixed a buffer overflow in the st21nfca driver. An attacker with adjacent NFC access could trigger crash the system or corrupt system memory (bsc#1196830).
• CVE-2022-0487: A use-after-free vulnerability was found in rtsx_usb_ms_drv_remove() in drivers/memstick/host/rtsx_usb_ms.c (bsc#1194516).
• CVE-2022-24448: Fixed an issue if an application sets the O_DIRECTORY flag, and tries to open a regular file, nfs_atomic_open() performs a regular lookup. If a regular file is found, ENOTDIR should have occured, but the server instead returned uninitialized data in the file descriptor (bsc#1195612).
• CVE-2022-0617: Fixed a null pointer dereference in UDF file system functionality. A local user could crash the system by triggering udf_file_write_iter() via a malicious UDF image. (bsc#1196079)
• CVE-2022-0644: Fixed a denial of service by a local user. A assertion failure could be triggered in kernel_read_file_from_fd(). (bsc#1196155)
• CVE-2022-25258: The USB Gadget subsystem lacked certain validation of interface OS descriptor requests, which could have lead to memory corruption (bsc#1196096).
• CVE-2022-24958: drivers/usb/gadget/legacy/inode.c mishandled dev->buf release (bsc#1195905).
• CVE-2022-24959: Fixed a memory leak in yam_siocdevprivate() in drivers/net/hamradio/yam.c (bsc#1195897).
• CVE-2021-44879: In gc_data_segment() in fs/f2fs/gc.c, special files were not considered, which lead to a move_data_page NULL pointer dereference (bsc#1195987).
• CVE-2021-0920: Fixed a local privilege escalation due to a use-after-free vulnerability in unix_scm_to_skb of af_unix (bsc#1193731).
• CVE-2021-39657: Fixed an information leak in the Universal Flash Storage subsystem (bsc#1193864).

The following non-security bugs were fixed:

• ALSA: intel_hdmi: Fix reference to PCM buffer address (git-fixes).
• ARM: 9182/1: mmu: fix returns from early_param() and __setup() functions (git-fixes).
• ARM: Fix kgdb breakpoint for Thumb2 (git-fixes).
• ASoC: cs4265: Fix the duplicated control name (git-fixes).
• ASoC: ops: Shift tested values in snd_soc_put_volsw() by +min (git-fixes).
• ASoC: rt5668: do not block workqueue if card is unbound (git-fixes).
• ASoC: rt5682: do not block workqueue if card is unbound (git-fixes).
• Bluetooth: btusb: Add missing Chicony device for Realtek RTL8723BE (bsc#1196779).
• EDAC/altera: Fix deferred probing (bsc#1178134).
• HID: add mapping for KEY_ALL_APPLICATIONS (git-fixes).
• HID: add mapping for KEY_DICTATE (git-fixes).
• Hand over the maintainership to SLE15-SP3 maintainers
• IB/hfi1: Correct guard on eager buffer deallocation (git-fixes).
• IB/hfi1: Fix early init panic (git-fixes).
• IB/hfi1: Fix leak of rcvhdrtail_dummy_kvaddr (git-fixes).
• IB/hfi1: Insure use of smp_processor_id() is preempt disabled (git-fixes).
• IB/rdmavt: Validate remote_addr during loopback atomic tests (git-fixes).
• Input: clear BTN_RIGHT/MIDDLE on buttonpads (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).
• RDMA/bnxt_re: Scan the whole bitmap when checking if 'disabling RCFW with pending cmd-bit' (git-fixes).
• RDMA/cma: Do not change route.addr.src_addr outside state checks (bsc#1181147).
• RDMA/cma: Let cma_resolve_ib_dev() continue search even after empty entry (git-fixes).
• RDMA/cma: Remove open coding of overflow checking for private_data_len (git-fixes).
• RDMA/core: Do not infoleak GRH fields (git-fixes).
• RDMA/core: Let ib_find_gid() continue search even after empty entry (git-fixes).
• RDMA/cxgb4: Set queue pair state when being queried…

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

The following security bugs were fixed:

• CVE-2022-25636: Fixed an issue which allowed a local users to gain privileges because of a heap out-of-bounds write in nf_dup_netdev.c, related to nf_tables_offload (bsc#1196299).
• CVE-2022-26490: Fixed a buffer overflow in the st21nfca driver. An attacker with adjacent NFC access could trigger crash the system or corrupt system memory (bsc#1196830).
• CVE-2022-0487: A use-after-free vulnerability was found in rtsx_usb_ms_drv_remove() in drivers/memstick/host/rtsx_usb_ms.c (bsc#1194516).
• CVE-2022-24448: Fixed an issue if an application sets the O_DIRECTORY flag, and tries to open a regular file, nfs_atomic_open() performs a regular lookup. If a regular file is found, ENOTDIR should have occured, but the server instead returned uninitialized data in the file descriptor (bsc#1195612).
• CVE-2022-0617: Fixed a null pointer dereference in UDF file system functionality. A local user could crash the system by triggering udf_file_write_iter() via a malicious UDF image. (bsc#1196079)
• CVE-2022-0644: Fixed a denial of service by a local user. A assertion failure could be triggered in kernel_read_file_from_fd(). (bsc#1196155)
• CVE-2022-25258: The USB Gadget subsystem lacked certain validation of interface OS descriptor requests, which could have lead to memory corruption (bsc#1196096).
• CVE-2022-24958: drivers/usb/gadget/legacy/inode.c mishandled dev->buf release (bsc#1195905).
• CVE-2022-24959: Fixed a memory leak in yam_siocdevprivate() in drivers/net/hamradio/yam.c (bsc#1195897).
• CVE-2021-44879: In gc_data_segment() in fs/f2fs/gc.c, special files were not considered, which lead to a move_data_page NULL pointer dereference (bsc#1195987).
• CVE-2021-0920: Fixed a local privilege escalation due to a use-after-free vulnerability in unix_scm_to_skb of af_unix (bsc#1193731).
• CVE-2021-39657: Fixed an information leak in the Universal Flash Storage subsystem (bsc#1193864).
• CVE-2022-26966: Fixed an issue in drivers/net/usb/sr9700.c, which allowed attackers to obtain sensitive information from heap memory via crafted frame lengths from a device (bsc#1196836).
• CVE-2021-39698: Fixed a possible memory corruption due to a use after free in aio_poll_complete_work. This could lead to local escalation of privilege with no additional execution privileges needed. (bsc#1196956)
• CVE-2021-45402: The check_alu_op function in kernel/bpf/verifier.c did not properly update bounds while handling the mov32 instruction, which allowed local users to obtain potentially sensitive address information (bsc#1196130).
• CVE-2022-23036,CVE-2022-23037,CVE-2022-23038,CVE-2022-23039,CVE-2022-23040,CVE-2022-23041,CVE-2022-23042: Fixed multiple issues which could have lead to read/write access to memory pages or denial of service. These issues are related to the Xen PV device frontend drivers. (bsc#1196488)

The following non-security bugs were fixed:

• ALSA: intel_hdmi: Fix reference to PCM buffer address (git-fixes).
• ARM: 9182/1: mmu: fix returns from early_param() and __setup() functions (git-fixes).
• ARM: Fix kgdb breakpoint for Thumb2 (git-fixes).
• ASoC: cs4265: Fix the duplicated control name (git-fixes).
• ASoC: ops: Shift tested values in snd_soc_put_volsw() by +min (git-fixes).
• ASoC: rt5668: do not block workqueue if card is unbound (git-fixes).
• ASoC: rt5682: do not block workqueue if card is unbound (git-fixes).
• Bluetooth: btusb: Add missing Chicony device for Realtek RTL8723BE (bsc#1196779).
• EDAC/altera: Fix deferred probing (bsc#1178134).
• EDAC: Fix calculation of returned address and next offset in edac_align_ptr() (bsc#1178134).
• HID: add mapping for KEY_ALL_APPLICATIONS (git-fixes).
• HID: add mapping for KEY_DICTATE (git-fixes).
• Hand over the maintainership to SLE15-SP3 maintainers
• IB/hfi1: Correct guard on eager buffer deallocation (git-fixes).
• IB/hfi1: Fix early init panic…

The SUSE Linux Enterprise 12 SP5 kernel was updated.

The following security bugs were fixed:

• CVE-2019-15126: Fixed a vulnerability in Broadcom and Cypress Wi-Fi chips, used in RPi family of devices aka 'Kr00k'. (bsc#1167162)
• CVE-2021-33098: Fixed a potential denial of service in Intel(R) Ethernet ixgbe driver due to improper input validation. (bsc#1192877)
• CVE-2021-0935: Fixed out of bounds write due to a use after free which could lead to local escalation of privilege with System execution privileges needed in ip6_xmit. (bsc#1192032)
• CVE-2018-25020: Fixed an issue in the BPF subsystem in the Linux kernel mishandled situations with a long jump over an instruction sequence where inner instructions require substantial expansions into multiple BPF instructions, leading to an overflow. (bsc#1193575)
• CVE-2021-0920: Fixed a local privilege escalation due to an use after free bug in unix_gc. (bsc#1193731)
• CVE-2021-45485: Fixed an information leak because of certain use of a hash table which use IPv6 source addresses. (bsc#1194094)
• CVE-2021-45486: Fixed an information leak because the hash table is very small in net/ipv4/route.c. (bsc#1194087)
• CVE-2021-28715: Fixed an issue where a guest could force Linux netback driver to hog large amounts of kernel memory by do not queueing unlimited number of packages. (bsc#1193442)
• CVE-2021-28714: Fixed an issue where a guest could force Linux netback driver to hog large amounts of kernel memory by fixing rx queue stall detection. (bsc#1193442)
• CVE-2021-28713: Fixed a rogue backends that could cause DoS of guests via high frequency events by hardening hvc_xen against event channel storms. (bsc#1193440)
• CVE-2021-28712: Fixed a rogue backends that could cause DoS of guests via high frequency events by hardening netfront against event channel storms. (bsc#1193440)
• CVE-2021-28711: Fixed a rogue backends that could cause DoS of guests via high frequency events by hardening blkfront against event channel storms. (bsc#1193440)
• CVE-2021-43975: Fixed a flaw in hw_atl_utils_fw_rpc_wait that could allow an attacker (who can introduce a crafted device) to trigger an out-of-bounds write via a crafted length value. (bsc#1192845)
• CVE-2021-43976: Fixed a flaw that could allow an attacker (who can connect a crafted USB device) to cause a denial of service. (bsc#1192847)
• CVE-2021-4002: Added a missing TLB flush that could lead to leak or corruption of data in hugetlbfs. (bsc#1192946)
• CVE-2020-27820: Fixed a vulnerability where a use-after-frees in nouveau's postclose() handler could happen if removing device. (bsc#1179599)

The following non-security bugs were fixed:

• blk-mq: do not deactivate hctx if managed irq isn't used (bsc#1185762).
• cifs: Add new mount parameter 'acdirmax' to allow caching directory metadata (bsc#1190317).
• cifs: Add new parameter 'acregmax' for distinct file and directory metadata timeout (bsc#1190317).
• cifs: convert list_for_each to entry variant (jsc#SLE-20656).
• cifs: convert revalidate of directories to using directory metadata cache timeout (bsc#1190317).
• cifs: Do not leak EDEADLK to dgetents64 for STATUS_USER_SESSION_DELETED (bsc#1190317).
• cifs: fiemap: do not return EINVAL if get nothing (bsc#1190317).
• cifs: Fix a potencially linear read overflow (git-fixes).
• cifs: fix a sign extension bug (git-fixes).
• cifs: fix incorrect check for null pointer in header_assemble (bsc#1190317).
• cifs: fix memory leak of smb3_fs_context_dup::server_hostname (bsc#1190317).
• cifs: fix missed refcounting of ipc tcon (git-fixes).
• cifs: fix potential use-after-free bugs (jsc#SLE-20656).
• cifs: fix print of hdr_flags in dfscache_proc_show() (jsc#SLE-20656).
• cifs: fix wrong release in sess_alloc_buffer() failed path (bsc#1190317).
• cifs: for compound requests, use open handle if possible (bsc#1190317).
• cifs: introduce new helper for cifs_reconnect() (jsc#SLE-20656).
• cifs: move to generic async completion (bsc#1190317).
• cifs: nosharesock…

The SUSE Linux Enterprise 12 SP5 kernel was updated.

The following security bugs were fixed:

• CVE-2021-4083: Fixed a race condition with Unix domain socket garbage collection that can lead to read memory after free. (bsc#1193727)
• CVE-2021-4149: Fixed an improper lock operation in btrfs which allows users to crash the kernel or deadlock the system. (bsc#1194001)
• CVE-2021-45485: Fixed an information leak because of certain use of a hash table which use IPv6 source addresses. (bsc#1194094)
• CVE-2021-45486: Fixed an information leak because the hash table is very small in net/ipv4/route.c. (bsc#1194087)
• CVE-2021-0920: Fixed a local privilege escalation due to an use after free bug in unix_gc. (bsc#1193731)
• CVE-2021-28715: Fixed an issue where a guest could force Linux netback driver to hog large amounts of kernel memory by do not queueing unlimited number of packages. (bsc#1193442)
• CVE-2021-28714: Fixed an issue where a guest could force Linux netback driver to hog large amounts of kernel memory by fixing rx queue stall detection. (bsc#1193442)
• CVE-2021-28713: Fixed a rogue backends that could cause DoS of guests via high frequency events by hardening hvc_xen against event channel storms. (bsc#1193440)
• CVE-2021-28712: Fixed a rogue backends that could cause DoS of guests via high frequency events by hardening netfront against event channel storms. (bsc#1193440)
• CVE-2021-28711: Fixed a rogue backends that could cause DoS of guests via high frequency events by hardening blkfront against event channel storms. (bsc#1193440)
• CVE-2018-25020: Fixed an issue in the BPF subsystem in the Linux kernel mishandled situations with a long jump over an instruction sequence where inner instructions require substantial expansions into multiple BPF instructions, leading to an overflow. (bsc#1193575)
• CVE-2021-4002: Added a missing TLB flush that could lead to leak or corruption of data in hugetlbfs. (bsc#1192946)
• CVE-2021-0935: Fixed out of bounds write due to a use after free which could lead to local escalation of privilege with System execution privileges needed in ip6_xmit. (bsc#1192032)
• CVE-2019-15126: Fixed a vulnerability in Broadcom and Cypress Wi-Fi chips, used in RPi family of devices aka 'Kr00k'. (bsc#1167162)
• CVE-2021-33098: Fixed a potential denial of service in Intel(R) Ethernet ixgbe driver due to improper input validation. (bsc#1192877)
• CVE-2021-43975: Fixed a flaw in hw_atl_utils_fw_rpc_wait that could allow an attacker (who can introduce a crafted device) to trigger an out-of-bounds write via a crafted length value. (bsc#1192845)
• CVE-2021-43976: Fixed a flaw that could allow an attacker (who can connect a crafted USB device) to cause a denial of service. (bsc#1192847)
• CVE-2020-27820: Fixed a vulnerability where a use-after-frees in nouveau's postclose() handler could happen if removing device. (bsc#1179599)

The following non-security bugs were fixed:

• blk-mq: do not deactivate hctx if managed irq isn't used (bsc#1185762).
• bpf: Add kconfig knob for disabling unpriv bpf by default (jsc#SLE-22913)
• bpf: Disallow unprivileged bpf by default (jsc#SLE-22913).
• cifs: Add new mount parameter 'acdirmax' to allow caching directory metadata (bsc#1190317).
• cifs: Add new parameter 'acregmax' for distinct file and directory metadata timeout (bsc#1190317).
• cifs: convert list_for_each to entry variant (jsc#SLE-20656).
• cifs: convert revalidate of directories to using directory metadata cache timeout (bsc#1190317).
• cifs: Do not leak EDEADLK to dgetents64 for STATUS_USER_SESSION_DELETED (bsc#1190317).
• cifs: fiemap: do not return EINVAL if get nothing (bsc#1190317).
• cifs: Fix a potencially linear read overflow (git-fixes).
• cifs: fix a sign extension bug (git-fixes).
• cifs: fix incorrect check for null pointer in header_assemble (bsc#1190317).
• cifs: fix memory leak of smb3_fs_context_dup::server_hostname (bsc#1190317).
• cifs: fix missed refcounting of ipc tcon (git-fixes).
• cifs: fix…

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

The following security bugs were fixed:

• CVE-2019-15126: Fixed a vulnerability in Broadcom and Cypress Wi-Fi chips, used in RPi family of devices aka 'Kr00k'. (bsc#1167162)
• CVE-2020-27820: Fixed a vulnerability where a use-after-frees in nouveau's postclose() handler could happen if removing device. (bsc#1179599)
• CVE-2021-0920: Fixed a local privilege escalation due to an use after free bug in unix_gc. (bsc#1193731)
• CVE-2021-0935: Fixed out of bounds write due to a use after free which could lead to local escalation of privilege with System execution privileges needed in ip6_xmit. (bsc#1192032)
• CVE-2021-4002: Added a missing TLB flush that could lead to leak or corruption of data in hugetlbfs. (bsc#1192946)
• CVE-2021-28711: Fixed a rogue backends that could cause DoS of guests via high frequency events by hardening blkfront against event channel storms. (bsc#1193440)
• CVE-2021-28712: Fixed a rogue backends that could cause DoS of guests via high frequency events by hardening netfront against event channel storms. (bsc#1193440)
• CVE-2021-28713: Fixed a rogue backends that could cause DoS of guests via high frequency events by hardening hvc_xen against event channel storms. (bsc#1193440)
• CVE-2021-28714: Fixed an issue where a guest could force Linux netback driver to hog large amounts of kernel memory by fixing rx queue stall detection. (bsc#1193442)
• CVE-2021-28715: Fixed an issue where a guest could force Linux netback driver to hog large amounts of kernel memory by do not queueing unlimited number of packages. (bsc#1193442)
• CVE-2021-33098: Fixed a potential denial of service in Intel(R) Ethernet ixgbe driver due to improper input validation. (bsc#1192877)
• CVE-2021-43975: Fixed a flaw in hw_atl_utils_fw_rpc_wait that could allow an attacker (who can introduce a crafted device) to trigger an out-of-bounds write via a crafted length value. (bsc#1192845)
• CVE-2021-43976: Fixed a flaw that could allow an attacker (who can connect a crafted USB device) to cause a denial of service. (bsc#1192847)
• CVE-2021-45485: Fixed an information leak because of certain use of a hash table which use IPv6 source addresses. (bsc#1194094)
• CVE-2021-45486: Fixed an information leak because the hash table is very small in net/ipv4/route.c. (bsc#1194087)

The following non-security bugs were fixed:

• blk-mq: do not deactivate hctx if managed irq isn't used (bsc#1185762).
• cifs: fix missed refcounting of ipc tcon (git-fixes).
• cifs: nosharesock should be set on new server (git-fixes).
• config: INPUT_EVBUG=n (bsc#1192974). Debug driver unsuitable for production, only enabled on ppc64.
• constraints: Build aarch64 on recent ARMv8.1 builders. Request asimdrdm feature which is available only on recent ARMv8.1 CPUs. This should prevent scheduling the kernel on an older slower builder.
• edac/amd64: Handle three rank interleaving mode (bsc#1114648).
• elfcore: correct reference to CONFIG_UML (git-fixes).
• fuse: release pipe buf after last use (bsc#1193318).
• genirq: Move initial affinity setup to irq_startup() (bsc#1193231).
• genirq: Provide IRQCHIP_AFFINITY_PRE_STARTUP (bsc#1193231).
• genirq: Remove mask argument from setup_affinity() (bsc#1193231).
• genirq: Rename setup_affinity() to irq_setup_affinity() (bsc#1193231).
• genirq: Split out irq_startup() code (bsc#1193231).
• kernel-*-subpackage: Add dependency on kernel scriptlets (bsc#1192740).
• kernel-binary.spec.in Stop templating the scriptlets for subpackages (bsc#1190358). The script part for base package case is completely separate from the part for subpackages. Remove the part for subpackages from the base package script and use the KMP scripts for subpackages instead.
• kernel-binary.spec.in: add zstd to BuildRequires if used
• kernel-binary.spec.in: make sure zstd is supported by kmod if used
• kernel-binary.spec: Check for no kernel signing certificates. Also remove…

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

The following security bugs were fixed:

• CVE-2022-0435: Fixed remote stack overflow in net/tipc module that validate domain record count on input (bsc#1195254).
• CVE-2022-0330: Fixed flush TLBs before releasing backing store (bsc#1194880).
• CVE-2021-45486: Fixed an information leak because the hash table is very small in net/ipv4/route.c (bnc#1194087).
• CVE-2021-45095: Fixed refcount leak in pep_sock_accept in net/phonet/pep.c (bnc#1193867).
• CVE-2021-44733: Fixed a use-after-free exists in drivers/tee/tee_shm.c in the TEE subsystem, that could have occured because of a race condition in tee_shm_get_from_id during an attempt to free a shared memory object (bnc#1193767).
• CVE-2021-43976: Fixed a flaw that could allow an attacker (who can connect a crafted USB device) to cause a denial of service. (bnc#1192847)
• CVE-2021-43975: Fixed a flaw in hw_atl_utils_fw_rpc_wait that could allow an attacker (who can introduce a crafted device) to trigger an out-of-bounds write via a crafted length value. (bsc#1192845)
• CVE-2021-4202: Fixed NFC race condition by adding NCI_UNREG flag (bsc#1194529).
• CVE-2021-4197: Use cgroup open-time credentials for process migraton perm checks (bsc#1194302).
• CVE-2021-4159: Fixed kernel ptr leak vulnerability via BPF in coerce_reg_to_size (bsc#1194227).
• CVE-2021-4149: Fixed btrfs unlock newly allocated extent buffer after error (bsc#1194001).
• CVE-2021-4135: Fixed zero-initialize memory inside netdevsim for new map's value in function nsim_bpf_map_alloc (bsc#1193927).
• CVE-2021-4083: Fixed a read-after-free memory flaw inside the garbage collection for Unix domain socket file handlers when users call close() and fget() simultaneouslyand can potentially trigger a race condition (bnc#1193727).
• CVE-2021-4002: Fixed incorrect TLBs flush in hugetlbfs after huge_pmd_unshare (bsc#1192946).
• CVE-2021-39657: Fixed out of bounds read due to a missing bounds check in ufshcd_eh_device_reset_handler of ufshcd.c. This could lead to local information disclosure with System execution privileges needed (bnc#1193864).
• CVE-2021-39648: Fixed possible disclosure of kernel heap memory due to a race condition in gadget_dev_desc_UDC_show of configfs.c. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation (bnc#1193861).
• CVE-2021-3564: Fixed double-free memory corruption in the Linux kernel HCI device initialization subsystem that could have been used by attaching malicious HCI TTY Bluetooth devices. A local user could use this flaw to crash the system (bnc#1186207).
• CVE-2021-33098: Fixed a potential denial of service in Intel(R) Ethernet ixgbe driver due to improper input validation. (bsc#1192877)
• CVE-2021-28715: Fixed issue with xen/netback to do not queue unlimited number of packages (XSA-392) (bsc#1193442).
• CVE-2021-28714: Fixed issue with xen/netback to handle rx queue stall detection (XSA-392) (bsc#1193442).
• CVE-2021-28713: Fixed issue with xen/console to harden hvc_xen against event channel storms (XSA-391) (bsc#1193440).
• CVE-2021-28712: Fixed issue with xen/netfront to harden netfront against event channel storms (XSA-391) (bsc#1193440).
• CVE-2021-28711: Fixed issue with xen/blkfront to harden blkfront against event channel storms (XSA-391) (bsc#1193440).
• CVE-2021-0935: Fixed possible out of bounds write in ip6_xmit of ip6_output.c due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation (bnc#1192032).
• CVE-2021-0920: Fixed a local privilege escalation due to an use after free bug in unix_gc (bsc#1193731).
• CVE-2020-27820: Fixed a vulnerability where a use-after-frees in nouveau's postclose() handler could happen if removing device (bsc#1179599).
• CVE-2019-15126: Fixed a vulnerability in Broadcom…

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

The following security bugs were fixed:

• CVE-2022-0435: Fixed remote stack overflow in net/tipc module that validate domain record count on input (bsc#1195254).
• CVE-2021-3564: Fixed double-free memory corruption in the Linux kernel HCI device initialization subsystem that could have been used by attaching malicious HCI TTY Bluetooth devices. A local user could use this flaw to crash the system (bnc#1186207).
• CVE-2021-45095: Fixed refcount leak in pep_sock_accept in net/phonet/pep.c (bnc#1193867).
• CVE-2021-39657: Fixed out of bounds read due to a missing bounds check in ufshcd_eh_device_reset_handler of ufshcd.c. This could lead to local information disclosure with System execution privileges needed (bnc#1193864).
• CVE-2021-39648: Fixed possible disclosure of kernel heap memory due to a race condition in gadget_dev_desc_UDC_show of configfs.c. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation (bnc#1193861).
• CVE-2021-44733: Fixed a use-after-free exists in drivers/tee/tee_shm.c in the TEE subsystem, that could have occured because of a race condition in tee_shm_get_from_id during an attempt to free a shared memory object (bnc#1193767).
• CVE-2022-0330: Fixed flush TLBs before releasing backing store (bsc#1194880).
• CVE-2022-0322: Fixed SCTP issue with account stream padding length for reconf chunk (bsc#1194985).
• CVE-2021-4197: Use cgroup open-time credentials for process migraton perm checks (bsc#1194302).
• CVE-2021-4202: Fixed NFC race condition by adding NCI_UNREG flag (bsc#1194529).
• CVE-2021-4083: Fixed a read-after-free memory flaw inside the garbage collection for Unix domain socket file handlers when users call close() and fget() simultaneouslyand can potentially trigger a race condition (bnc#1193727).
• CVE-2021-4149: Fixed btrfs unlock newly allocated extent buffer after error (bsc#1194001).
• CVE-2021-45486: Fixed an information leak because the hash table is very small in net/ipv4/route.c (bnc#1194087).
• CVE-2021-0920: Fixed a local privilege escalation due to an use after free bug in unix_gc (bsc#1193731).
• CVE-2021-28711: Fixed issue with xen/blkfront to harden blkfront against event channel storms (XSA-391) (bsc#1193440).
• CVE-2021-28712: Fixed issue with xen/netfront to harden netfront against event channel storms (XSA-391) (bsc#1193440).
• CVE-2021-28713: Fixed issue with xen/console to harden hvc_xen against event channel storms (XSA-391) (bsc#1193440).
• CVE-2021-28714: Fixed issue with xen/netback to handle rx queue stall detection (XSA-392) (bsc#1193442).
• CVE-2021-28715: Fixed issue with xen/netback to do not queue unlimited number of packages (XSA-392) (bsc#1193442).
• CVE-2018-25020: Fixed an overflow in the BPF subsystem due to a mishandling of a long jump over an instruction sequence where inner instructions require substantial expansions into multiple BPF instructions. This affects kernel/bpf/core.c and net/core/filter.c (bnc#1193575).
• CVE-2021-0935: Fixed possible out of bounds write in ip6_xmit of ip6_output.c due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation (bnc#1192032).
• CVE-2020-27820: Fixed a vulnerability where a use-after-frees in nouveau's postclose() handler could happen if removing device (bsc#1179599).
• CVE-2021-4002: Fixed incorrect TLBs flush in hugetlbfs after huge_pmd_unshare (bsc#1192946).
• CVE-2021-43975: hw_atl_utils_fw_rpc_wait in drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c allowed an attacker (who can introduce a crafted device) to trigger an out-of-bounds write via a crafted length value (bnc#1192845).
• CVE-2021-33098: Improper input validation in the Intel(R) Ethernet ixgbe driver for Linux before version 3.17.3 may have allowed an authenticated…

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

The following security bugs were fixed:

• CVE-2022-0435: Fixed remote stack overflow in net/tipc module that validate domain record count on input (bsc#1195254).
• CVE-2022-0330: Fixed flush TLBs before releasing backing store (bsc#1194880).
• CVE-2022-0322: Fixed SCTP issue with account stream padding length for reconf chunk (bsc#1194985).
• CVE-2021-45486: Fixed information leak inside the IPv4 implementation caused by very small hash table (bnc#1194087).
• CVE-2021-45095: Fixed refcount leak in pep_sock_accept in net/phonet/pep.c (bnc#1193867).
• CVE-2021-44733: Fixed a use-after-free exists in drivers/tee/tee_shm.c in the TEE subsystem, that could have occured because of a race condition in tee_shm_get_from_id during an attempt to free a shared memory object (bnc#1193767).
• CVE-2021-43976: Fixed a flaw that could allow an attacker (who can connect a crafted USB device) to cause a denial of service. (bnc#1192847)
• CVE-2021-43975: Fixed a flaw in hw_atl_utils_fw_rpc_wait that could allow an attacker (who can introduce a crafted device) to trigger an out-of-bounds write via a crafted length value. (bsc#1192845)
• CVE-2021-4202: Fixed NFC race condition by adding NCI_UNREG flag (bsc#1194529).
• CVE-2021-4197: Use cgroup open-time credentials for process migraton perm checks (bsc#1194302).
• CVE-2021-4159: Fixed kernel ptr leak vulnerability via BPF in coerce_reg_to_size (bsc#1194227).
• CVE-2021-4149: Fixed btrfs unlock newly allocated extent buffer after error (bsc#1194001).
• CVE-2021-4083: Fixed a read-after-free memory flaw inside the garbage collection for Unix domain socket file handlers when users call close() and fget() simultaneouslyand can potentially trigger a race condition (bnc#1193727).
• CVE-2021-4002: Fixed a missing TLB flush that could lead to leak or corruption of data in hugetlbfs. (bsc#1192946)
• CVE-2021-39657: Fixed out of bounds read due to a missing bounds check in ufshcd_eh_device_reset_handler of ufshcd.c. This could lead to local information disclosure with System execution privileges needed (bnc#1193864).
• CVE-2021-39648: Fixed possible disclosure of kernel heap memory due to a race condition in gadget_dev_desc_UDC_show of configfs.c. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation (bnc#1193861).
• CVE-2021-3564: Fixed double-free memory corruption in the Linux kernel HCI device initialization subsystem that could have been used by attaching malicious HCI TTY Bluetooth devices. A local user could use this flaw to crash the system (bnc#1186207).
• CVE-2021-33098: Fixed a potential denial of service in Intel(R) Ethernet ixgbe driver due to improper input validation. (bsc#1192877)
• CVE-2021-28715: Fixed issue with xen/netback to do not queue unlimited number of packages (XSA-392) (bsc#1193442).
• CVE-2021-28714: Fixed issue with xen/netback to add rx queue stall detection (XSA-392) (bsc#1193442).
• CVE-2021-28713: Fixed issue with xen/console to harden hvc_xen against event channel storms (XSA-391) (bsc#1193440).
• CVE-2021-28712: Fixed issue with xen/netfront to harden netfront against event channel storms (XSA-391) (bsc#1193440).
• CVE-2021-28711: Fixed issue with xen/blkfront to harden blkfront against event channel storms (XSA-391) (bsc#1193440).
• CVE-2021-0935: Fixed possible out of bounds write in ip6_xmit of ip6_output.c due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation (bnc#1192032).
• CVE-2021-0920: Fixed use after free bug due to a race condition in unix_scm_to_skb of af_unix.c. This could have led to local escalation of privilege with System execution privileges needed (bnc#1193731).
• CVE-2020-27820: Fixed a vulnerability where a use-after-frees in nouveau's postclose() handler could…

This update for the Linux Kernel 5.3.18-150300_59_49 fixes several issues.

The following security issues were fixed:

• CVE-2022-0516: Fixed KVM s390 return error on SIDA memop on normal guest (bsc#1195947).
• CVE-2021-0920: Fixed a local privilege escalation due to an use after free bug in unix_gc (bsc#1194463).

This update for the Linux Kernel 5.3.18-57 fixes several issues.

The following security issues were fixed:

• CVE-2022-0516: Fixed KVM s390 return error on SIDA memop on normal guest (bsc#1195947).
• CVE-2021-0920: Fixed a local privilege escalation due to an use after free bug in unix_gc (bsc#1194463).
• CVE-2021-22600: Fixed double free bug in packet_set_ring() in net/packet/af_packet.c that could have been exploited by a local user through crafted syscalls to escalate privileges or deny service (bsc#1195307).

This update for the Linux Kernel 4.12.14-197_86 fixes one issue.

The following security issue was fixed:

• CVE-2021-0920: Fixed a local privilege escalation due to an use after free bug in unix_gc (bsc#1194463).

This update for the Linux Kernel 5.3.18-59_10 fixes several issues.

The following security issues were fixed:

• CVE-2022-0516: Fixed KVM s390 return error on SIDA memop on normal guest (bsc#1195947).
• CVE-2021-0920: Fixed a local privilege escalation due to an use after free bug in unix_gc (bsc#1194463).
• CVE-2021-22600: Fixed double free bug in packet_set_ring() in net/packet/af_packet.c that could have been exploited by a local user through crafted syscalls to escalate privileges or deny service (bsc#1195307).