CVE-2021-46936

The Linux Kernel, the operating system core itself.

Security Fix(es):

In the Linux kernel, the following vulnerability has been resolved:

sctp: use call_rcu to free endpoint

This patch is to delay the endpoint free by calling call_rcu() to fix another use-after-free issue in sctp_sock_dump():

BUG: KASAN: use-after-free in __lock_acquire+0x36d9/0x4c20 Call Trace: __lock_acquire+0x36d9/0x4c20 kernel/locking/lockdep.c:3218 lock_acquire+0x1ed/0x520 kernel/locking/lockdep.c:3844 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline] _raw_spin_lock_bh+0x31/0x40 kernel/locking/spinlock.c:168 spin_lock_bh include/linux/spinlock.h:334 [inline] __lock_sock+0x203/0x350 net/core/sock.c:2253 lock_sock_nested+0xfe/0x120 net/core/sock.c:2774 lock_sock include/net/sock.h:1492 [inline] sctp_sock_dump+0x122/0xb20 net/sctp/diag.c:324 sctp_for_each_transport+0x2b5/0x370 net/sctp/socket.c:5091 sctp_diag_dump+0x3ac/0x660 net/sctp/diag.c:527 __inet_diag_dump+0xa8/0x140 net/ipv4/inet_diag.c:1049 inet_diag_dump+0x9b/0x110 net/ipv4/inet_diag.c:1065 netlink_dump+0x606/0x1080 net/netlink/af_netlink.c:2244 __netlink_dump_start+0x59a/0x7c0 net/netlink/af_netlink.c:2352 netlink_dump_start include/linux/netlink.h:216 [inline] inet_diag_handler_cmd+0x2ce/0x3f0 net/ipv4/inet_diag.c:1170 __sock_diag_cmd net/core/sock_diag.c:232 [inline] sock_diag_rcv_msg+0x31d/0x410 net/core/sock_diag.c:263 netlink_rcv_skb+0x172/0x440 net/netlink/af_netlink.c:2477 sock_diag_rcv+0x2a/0x40 net/core/sock_diag.c:274

This issue occurs when asoc is peeled off and the old sk is freed after getting it by asoc->base.sk and before calling lock_sock(sk).

To prevent the sk free, as a holder of the sk, ep should be alive when calling lock_sock(). This patch uses call_rcu() and moves sock_put and ep free into sctp_endpoint_destroy_rcu(), so that it's safe to try to hold the ep under rcu_read_lock in sctp_transport_traverse_process().

If sctp_endpoint_hold() returns true, it means this ep is still alive and we have held it and can continue to dump it; If it returns false, it means this ep is dead and can be freed after rcu_read_unlock, and we should skip it.

In sctp_sock_dump(), after locking the sk, if this ep is different from tsp->asoc->ep, it means during this dumping, this asoc was peeled off before calling lock_sock(), and the sk should be skipped; If this ep is the same with tsp->asoc->ep, it means no peeloff happens on this asoc, and due to lock_sock, no peeloff will happen either until release_sock.

Note that delaying endpoint free won't delay the port release, as the port release happens in sctp_endpoint_destroy() before calling call_rcu(). Also, freeing endpoint by call_rcu() makes it safe to access the sk by asoc->base.sk in sctp_assocs_seq_show() and sctp_rcv().

Thanks Jones to bring this issue up.

v1->v2:

• improve the changelog.
• add kfree(ep) into sctp_endpoint_destroy_rcu(), as Jakub noticed.(CVE-2021-46929)

In the Linux kernel, the following vulnerability has been resolved:

net: fix use-after-free in tw_timer_handler

A real world panic issue was found as follow in Linux 5.4.

BUG: unable to handle page fault for address: ffffde49a863de28
PGD 7e6fe62067 P4D 7e6fe62067 PUD 7e6fe63067 PMD f51e064067 PTE 0
RIP: 0010:tw_timer_handler+0x20/0x40
Call Trace:
 <IRQ>
 call_timer_fn+0x2b/0x120
 run_timer_softirq+0x1ef/0x450
 __do_softirq+0x10d/0x2b8
 irq_exit+0xc7/0xd0
 smp_apic_timer_interrupt+0x68/0x120
 apic_timer_interrupt+0xf/0x20

This issue was also reported since 2017 in the thread [1], unfortunately, the issue was still can be reproduced after fixing DCCP.

The ipv4_mib_exit_net is called before tcp_sk_exit_batch when a net namespace is destroyed since tcp_sk_ops is registered befrore ipv4_mib_ops, which means tcp_sk_ops is in the front of…

In the Linux kernel, the following vulnerability has been resolved: net: fix use-after-free in tw_timer_handler A real world panic issue was found as follow in Linux 5.4. BUG: unable to handle page fault for address: ffffde49a863de28 PGD 7e6fe62067 P4D 7e6fe62067 PUD 7e6fe63067 PMD f51e064067 PTE 0 RIP: 0010:tw_timer_handler+0x20/0x40 Call Trace: <IRQ> call_timer_fn+0x2b/0x120 run_timer_softirq+0x1ef/0x450 __do_softirq+0x10d/0x2b8 irq_exit+0xc7/0xd0 smp_apic_timer_interrupt+0x68/0x120 apic_timer_interrupt+0xf/0x20 This issue was also reported since 2017 in the thread [1], unfortunately, the issue was still can be reproduced after fixing DCCP. The ipv4_mib_exit_net is called before tcp_sk_exit_batch when a net namespace is destroyed since tcp_sk_ops is registered befrore ipv4_mib_ops, which means tcp_sk_ops is in the front of ipv4_mib_ops in the list of pernet_list. There will be a use-after-free on net->mib.net_statistics in tw_timer_handler after ipv4_mib_exit_net if there are some inflight time-wait timers. This bug is not introduced by commit f2bf415cfed7 ("mib: add net to NET_ADD_STATS_BH") since the net_statistics is a global variable instead of dynamic allocation and freeing. Actually, commit 61a7e26028b9 ("mib: put net statistics on struct net") introduces the bug since it put net statistics on struct net and free it when net namespace is destroyed. Moving init_ipv4_mibs() to the front of tcp_init() to fix this bug and replace pr_crit() with panic() since continuing is meaningless when init_ipv4_mibs() fails. [1] https://groups.google.com/g/syzkaller/c/p1tn-_Kc6l4/m/smuL_FMAAgAJ?pli=1

• CVE-url: https://ubuntu.com/security/CVE-2024-23307
  • md/raid5: fix atomicity violation in raid5_cache_count
• CVE-url: https://ubuntu.com/security/CVE-2021-46932
  • Input: appletouch - initialize work before device registration
• CVE-url: https://ubuntu.com/security/CVE-2021-46936
  • net: fix use-after-free in tw_timer_handler
• Bionic update: upstream stable patchset 2021-06-01 (LP: #1930472) // CVE- url: https://ubuntu.com/security/CVE-2021-46939
  • tracing: Restructure trace_clock_global() to never block
• CVE-url: https://ubuntu.com/security/CVE-2021-46933
  • usb: gadget: f_fs: Clear ffs_eventfd in ffs_data_clear.
• Bionic update: upstream stable patchset 2022-01-27 (LP: #1959335) // CVE- url: https://ubuntu.com/security/CVE-2021-46924
  • NFC: st21nfca: Fix memory leak in device probe and remove
• CVE-url: https://ubuntu.com/security/CVE-2023-52469
  • drivers/amd/pm: fix a use-after-free in kv_parse_power_table
• CVE-url: https://ubuntu.com/security/CVE-2024-26633
  • ip6_tunnel: fix NEXTHDR_FRAGMENT handling in ip6_tnl_parse_tlv_enc_lim()
• CVE-url: https://ubuntu.com/security/CVE-2023-52340
  • net: add a route cache full diagnostic message
  • net/dst: use a smaller percpu_counter batch for dst entries accounting
  • ipv6: remove max_size check inline with ipv4
• CVE-url: https://ubuntu.com/security/CVE-2023-52436
  • f2fs: explicitly null-terminate the xattr list
• CVE-url: https://ubuntu.com/security/CVE-2023-52470
  • drm/radeon: check the alloc_workqueue return value in radeon_crtc_init()
• CVE-url: https://ubuntu.com/security/CVE-2022-45884
  • media: dvbdev: convert DVB device types into an enum
  • media: dvbdev: remove double-unlock
  • media: media/dvb: Use kmemdup rather than duplicating its implementation
  • media: dvbdev: Fix memleak in dvb_register_device
  • media: dvbdev: fix error logic at dvb_register_device()
  • media: dvb-core: Fix use-after-free due to race at dvb_register_device()

• CVE-url: https://ubuntu.com/security/CVE-2024-23307
  • md/raid5: fix atomicity violation in raid5_cache_count
• CVE-url: https://ubuntu.com/security/CVE-2021-46932
  • Input: appletouch - initialize work before device registration
• CVE-url: https://ubuntu.com/security/CVE-2021-46936
  • net: fix use-after-free in tw_timer_handler
• Bionic update: upstream stable patchset 2021-06-01 (LP: #1930472) // CVE- url: https://ubuntu.com/security/CVE-2021-46939
  • tracing: Restructure trace_clock_global() to never block
• CVE-url: https://ubuntu.com/security/CVE-2021-46933
  • usb: gadget: f_fs: Clear ffs_eventfd in ffs_data_clear.
• Bionic update: upstream stable patchset 2022-01-27 (LP: #1959335) // CVE- url: https://ubuntu.com/security/CVE-2021-46924
  • NFC: st21nfca: Fix memory leak in device probe and remove
• CVE-url: https://ubuntu.com/security/CVE-2023-52469
  • drivers/amd/pm: fix a use-after-free in kv_parse_power_table
• CVE-url: https://ubuntu.com/security/CVE-2024-26633
  • ip6_tunnel: fix NEXTHDR_FRAGMENT handling in ip6_tnl_parse_tlv_enc_lim()
• CVE-url: https://ubuntu.com/security/CVE-2023-52340
  • net: add a route cache full diagnostic message
  • net/dst: use a smaller percpu_counter batch for dst entries accounting
  • ipv6: remove max_size check inline with ipv4
• CVE-url: https://ubuntu.com/security/CVE-2023-52436
  • f2fs: explicitly null-terminate the xattr list
• CVE-url: https://ubuntu.com/security/CVE-2023-52470
  • drm/radeon: check the alloc_workqueue return value in radeon_crtc_init()
• CVE-url: https://ubuntu.com/security/CVE-2022-45884
  • media: dvbdev: convert DVB device types into an enum
  • media: dvbdev: remove double-unlock
  • media: media/dvb: Use kmemdup rather than duplicating its implementation
  • media: dvbdev: Fix memleak in dvb_register_device
  • media: dvbdev: fix error logic at dvb_register_device()
  • media: dvb-core: Fix use-after-free due to race at dvb_register_device()

• fs,hugetlb: fix NULL pointer dereference in hugetlbs_fill_super {CVE-2024-0841}
• bpf: Fix incorrect verifier pruning due to missing register precision taints {CVE-2023-2163}
• bpf: Fix hashtab overflow check on 32-bit arches {CVE-2024-26884}
• RDMA/mlx5: Fix fortify source warning while accessing Eth segment {CVE-2024-26907}
• cfg80211: call cfg80211_stop_ap when switch from P2P_GO type {CVE-2021-47194}
• mlxsw: spectrum_acl_tcam: Fix stack corruption {CVE-2024-26586}
• mlxsw: spectrum_acl_erp: Fix error flow of pool allocation failure {CVE-2024-26586}
• net: fix use-after-free in tw_timer_handler {CVE-2021-46936}
• bpf: fix check for attempt to corrupt spilled pointer {CVE-2023-52462}
• bpf: Check the other end of slot_type for STACK_SPILL {CVE-2023-52462}
• bpf: Permits pointers on stack for helper calls {CVE-2023-52462}
• net: hso: fix NULL-deref on disconnect regression {CVE-2021-46905}
• net: hso: fix null-ptr-deref during tty device unregistration {CVE-2021-46905}
• usb: hso: check for return value in hso_serial_common_create() {CVE-2021-46905}
• md/raid5: fix atomicity violation in raid5_cache_count {CVE-2024-23307}
• dm rq: fix double free of blk_mq_tag_set in dev remove after table load fails {CVE-2021-46938}
• uio: Fix use-after-free in uio_open {CVE-2023-52439}
• uio: dismiss waiters on device unregistration {CVE-2023-52439}
• uio: Fix use-after-free in uio_unregister_device() {CVE-2023-52439}
• uio: free uio id after uio file node is freed {CVE-2023-52439}
• driver: uio: fix possible use-after-free in __uio_register_device {CVE-2023-52439}

• scsi: lpfc: Fix use-after-free in lpfc_unreg_rpi() routine {CVE-2021-47198}
• fs,hugetlb: fix NULL pointer dereference in hugetlbs_fill_super {CVE-2024-0841}
• bpf: Fix incorrect verifier pruning due to missing register precision taints {CVE-2023-2163}
• bpf: Fix hashtab overflow check on 32-bit arches {CVE-2024-26884}
• RDMA/mlx5: Fix fortify source warning while accessing Eth segment {CVE-2024-26907}
• cfg80211: call cfg80211_stop_ap when switch from P2P_GO type {CVE-2021-47194}
• mlxsw: spectrum_acl_tcam: Fix stack corruption {CVE-2024-26586}
• mlxsw: spectrum_acl_erp: Fix error flow of pool allocation failure {CVE-2024-26586}
• net: fix use-after-free in tw_timer_handler {CVE-2021-46936}
• md/raid5: fix atomicity violation in raid5_cache_count {CVE-2024-23307}
• uio: Fix use-after-free in uio_open {CVE-2023-52439}

• 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…

• blktrace: fix dereference after null check {CVE-2019-19768}
• blktrace: Protect q->blk_trace with RCU {CVE-2019-19768}
• blktrace: fix unlocked access to init/start-stop/teardown
• blktrace: Fix potential deadlock between delete & sysfs ops
• net: fix out-of-bounds access in ops_init {CVE-2024-36883}
• net/sched: sch_qfq: account for stab overhead in qfq_enqueue {CVE-2023-3611}
• scsi: pm8001: Fix use-after-free for aborted TMF sas_task {CVE-2022-48791}
• net: fix use-after-free in tw_timer_handler {CVE-2021-46936}
• ALSA: rawmidi: Fix racy buffer resize under concurrent accesses {CVE-2020-27786}
• ALSA: rawmidi: Fix race at copying & updating the position {CVE-2020-27786}
• tty: make FONTX ioctl use the tty pointer they were actually passed {CVE-2020-25668}
• vt: keyboard: avoid signed integer overflow in k_ascii {CVE-2020-13974}

• blktrace: fix dereference after null check {CVE-2019-19768}
• blktrace: Protect q->blk_trace with RCU {CVE-2019-19768}
• blktrace: fix unlocked access to init/start-stop/teardown
• blktrace: Fix potential deadlock between delete & sysfs ops
• net: fix out-of-bounds access in ops_init {CVE-2024-36883}
• net/sched: sch_qfq: account for stab overhead in qfq_enqueue {CVE-2023-3611}
• scsi: pm8001: Fix use-after-free for aborted TMF sas_task {CVE-2022-48791}
• net: fix use-after-free in tw_timer_handler {CVE-2021-46936}
• ALSA: rawmidi: Fix racy buffer resize under concurrent accesses {CVE-2020-27786}
• ALSA: rawmidi: Fix race at copying & updating the position {CVE-2020-27786}
• tty: make FONTX ioctl use the tty pointer they were actually passed {CVE-2020-25668}
• vt: keyboard: avoid signed integer overflow in k_ascii {CVE-2020-13974}
• spec: make single build including noarch packages

The SUSE Linux Enterprise 15 SP4 RT kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2021-46925: Fixed kernel panic caused by race of smc_sock (bsc#1220466).
• CVE-2021-46926: Fixed bug when detecting controllers in ALSA/hda/intel-sdw-acpi (bsc#1220478).
• CVE-2021-46927: Fixed assertion bug in nitro_enclaves: Use get_user_pages_unlocked() (bsc#1220443).
• CVE-2021-46929: Fixed use-after-free issue in sctp_sock_dump() (bsc#1220482).
• CVE-2021-46930: Fixed usb/mtu3 list_head check warning (bsc#1220484).
• CVE-2021-46931: Fixed wrong type casting in mlx5e_tx_reporter_dump_sq() (bsc#1220486).
• CVE-2021-46933: Fixed possible underflow in ffs_data_clear() (bsc#1220487).
• CVE-2021-46936: Fixed use-after-free in tw_timer_handler() (bsc#1220439).
• CVE-2021-47082: Fixed ouble free in tun_free_netdev() (bsc#1220969).
• CVE-2021-47087: Fixed incorrect page free bug in tee/optee (bsc#1220954).
• CVE-2021-47091: Fixed locking in ieee80211_start_ap()) error path (bsc#1220959).
• CVE-2021-47093: Fixed memleak on registration failure in intel_pmc_core (bsc#1220978).
• CVE-2021-47094: Fixed possible memory leak in KVM x86/mmu (bsc#1221551).
• CVE-2021-47095: Fixed missing initialization in ipmi/ssif (bsc#1220979).
• CVE-2021-47096: Fixed uninitalized user_pversion in ALSA rawmidi (bsc#1220981).
• CVE-2021-47097: Fixed stack out of bound access in elantech_change_report_id() (bsc#1220982).
• CVE-2021-47098: Fixed integer overflow/underflow in hysteresis calculations hwmon: (lm90) (bsc#1220983).
• CVE-2021-47099: Fixed BUG_ON assertion in veth when skb entering GRO are cloned (bsc#1220955).
• CVE-2021-47100: Fixed UAF when uninstall in ipmi (bsc#1220985).
• CVE-2021-47101: Fixed uninit-value in asix_mdio_read() (bsc#1220987).
• CVE-2021-47102: Fixed incorrect structure access In line: upper = info->upper_dev in net/marvell/prestera (bsc#1221009).
• CVE-2021-47104: Fixed memory leak in qib_user_sdma_queue_pkts() (bsc#1220960).
• CVE-2021-47105: Fixed potential memory leak in ice/xsk (bsc#1220961).
• CVE-2021-47107: Fixed READDIR buffer overflow in NFSD (bsc#1220965).
• CVE-2021-47108: Fixed possible NULL pointer dereference for mtk_hdmi_conf in drm/mediatek (bsc#1220986).
• CVE-2022-48626: Fixed a potential use-after-free on remove path moxart (bsc#1220366).
• CVE-2022-48629: Fixed possible memory leak in qcom-rng (bsc#1220989).
• CVE-2022-48630: Fixed infinite loop on requests not multiple of WORD_SZ in crypto: qcom-rng (bsc#1220990).
• CVE-2023-35827: Fixed a use-after-free issue in ravb_tx_timeout_work() (bsc#1212514).
• CVE-2023-52450: Fixed NULL pointer dereference issue in upi_fill_topology() (bsc#1220237).
• CVE-2023-52454: Fixed a kernel panic when host sends an invalid H2C PDU length (bsc#1220320).
• CVE-2023-52469: Fixed a use-after-free in kv_parse_power_table (bsc#1220411).
• CVE-2023-52470: Fixed null-ptr-deref in radeon_crtc_init() (bsc#1220413).
• CVE-2023-52474: Fixed a vulnerability with non-PAGE_SIZE-end multi-iovec user SDMA requests (bsc#1220445).
• CVE-2023-52477: Fixed USB Hub accesses to uninitialized BOS descriptors (bsc#1220790).
• CVE-2023-52492: Fixed a null-pointer-dereference in channel unregistration function __dma_async_device_channel_register() (bsc#1221276).
• CVE-2023-52497: Fixed data corruption in erofs (bsc#1220879).
• CVE-2023-52501: Fixed possible memory corruption in ring-buffer (bsc#1220885).
• CVE-2023-52502: Fixed a race condition in nfc_llcp_sock_get() and nfc_llcp_sock_get_sn() (bsc#1220831).
• CVE-2023-52504: Fixed possible out-of bounds in apply_alternatives() on a 5-level paging machine (bsc#1221553).
• CVE-2023-52507: Fixed possible shift-out-of-bounds in nfc/nci (bsc#1220833).
• CVE-2023-52508: Fixed null pointer dereference in nvme_fc_io_getuuid() (bsc#1221015).
• CVE-2023-52509: Fixed a use-after-free issue in ravb_tx_timeout_work() (bsc#1220836).
• CVE-2023-52510: Fixed a potential UAF in ca8210_probe() (bsc#1220898). -…

The SUSE Linux Enterprise 15 SP4 kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2024-25742: Fixed insufficient validation during #VC instruction emulation in x86/sev (bsc#1221725).
• CVE-2023-52519: Fixed possible overflow in HID/intel-ish-hid/ipc (bsc#1220920).
• CVE-2023-52529: Fixed a potential memory leak in sony_probe() (bsc#1220929).
• CVE-2023-52474: Fixed a vulnerability with non-PAGE_SIZE-end multi-iovec user SDMA requests (bsc#1220445).
• CVE-2023-52513: Fixed connection failure handling in RDMA/siw (bsc#1221022).
• CVE-2023-52515: Fixed possible use-after-free in RDMA/srp (bsc#1221048).
• CVE-2023-52564: Reverted invalid fix for UAF in gsm_cleanup_mux() (bsc#1220938).
• CVE-2023-52447: Fixed map_fd_put_ptr() signature kABI workaround (bsc#1220251).
• CVE-2023-52510: Fixed a potential UAF in ca8210_probe() (bsc#1220898).
• CVE-2023-52524: Fixed possible corruption in nfc/llcp (bsc#1220927).
• CVE-2023-52528: Fixed uninit-value access in __smsc75xx_read_reg() (bsc#1220843).
• CVE-2023-52507: Fixed possible shift-out-of-bounds in nfc/nci (bsc#1220833).
• CVE-2023-52566: Fixed potential use after free in nilfs_gccache_submit_read_data() (bsc#1220940).
• CVE-2023-52508: Fixed null pointer dereference in nvme_fc_io_getuuid() (bsc#1221015).
• CVE-2023-6535: Fixed a NULL pointer dereference in nvmet_tcp_execute_request (bsc#1217988).
• CVE-2023-6536: Fixed a NULL pointer dereference in __nvmet_req_complete (bsc#1217989).
• CVE-2023-6356: Fixed a NULL pointer dereference in nvmet_tcp_build_pdu_iovec (bsc#1217987).
• CVE-2023-52454: Fixed a kernel panic when host sends an invalid H2C PDU length (bsc#1220320).
• CVE-2023-52520: Fixed reference leak in platform/x86/think-lmi (bsc#1220921).
• CVE-2023-35827: Fixed a use-after-free issue in ravb_tx_timeout_work() (bsc#1212514).
• CVE-2023-52509: Fixed a use-after-free issue in ravb_tx_timeout_work() (bsc#1220836).
• CVE-2023-52501: Fixed possible memory corruption in ring-buffer (bsc#1220885).
• CVE-2023-52567: Fixed possible Oops in serial/8250_port: when using IRQ polling (irq = 0) (bsc#1220839).
• CVE-2023-52517: Fixed race between DMA RX transfer completion and RX FIFO drain in spi/sun6i (bsc#1221055).
• CVE-2023-52511: Fixed possible memory corruption in spi/sun6i (bsc#1221012).
• CVE-2023-52525: Fixed out of bounds check mwifiex_process_rx_packet() (bsc#1220840).
• CVE-2023-52504: Fixed possible out-of bounds in apply_alternatives() on a 5-level paging machine (bsc#1221553).
• CVE-2023-52575: Fixed SBPB enablement for spec_rstack_overflow=off (bsc#1220871).
• CVE-2022-48626: Fixed a potential use-after-free on remove path moxart (bsc#1220366).
• CVE-2022-48629: Fixed possible memory leak in qcom-rng (bsc#1220989).
• CVE-2022-48630: Fixed infinite loop on requests not multiple of WORD_SZ in crypto: qcom-rng (bsc#1220990).
• CVE-2021-46926: Fixed bug when detecting controllers in ALSA/hda/intel-sdw-acpi (bsc#1220478).
• CVE-2021-47096: Fixed uninitalized user_pversion in ALSA rawmidi (bsc#1220981).
• CVE-2021-47104: Fixed memory leak in qib_user_sdma_queue_pkts() (bsc#1220960).
• CVE-2021-47097: Fixed stack out of bound access in elantech_change_report_id() (bsc#1220982).
• CVE-2021-47094: Fixed possible memory leak in KVM x86/mmu (bsc#1221551).
• CVE-2021-47107: Fixed READDIR buffer overflow in NFSD (bsc#1220965).
• CVE-2021-47101: Fixed uninit-value in asix_mdio_read() (bsc#1220987).
• CVE-2021-47108: Fixed possible NULL pointer dereference for mtk_hdmi_conf in drm/mediatek (bsc#1220986).
• CVE-2021-47098: Fixed integer overflow/underflow in hysteresis calculations hwmon: (lm90) (bsc#1220983).
• CVE-2021-47100: Fixed UAF when uninstall in ipmi (bsc#1220985).
• CVE-2021-47095: Fixed missing initialization in ipmi/ssif (bsc#1220979).
• CVE-2021-47091: Fixed locking in ieee80211_start_ap()) error path (bsc#1220959).
• CVE-2021-46936: Fixed use-after-free in tw_timer_handler() (bsc#1220439).
• CVE-2021-47102: Fixed…

The SUSE Linux Enterprise 15 SP5 RT kernel was updated to receive various security bugfixes.

NOTE: This update has been retracted due to a bug in the BHI CPU sidechannel mitigation, which led to incorrect selection of other CPU mitigations.

The following security bugs were fixed:

• CVE-2021-46925: Fixed kernel panic caused by race of smc_sock (bsc#1220466).
• CVE-2021-46926: Fixed bug when detecting controllers in ALSA/hda/intel-sdw-acpi (bsc#1220478).
• CVE-2021-46927: Fixed assertion bug in nitro_enclaves: Use get_user_pages_unlocked() (bsc#1220443).
• CVE-2021-46929: Fixed use-after-free issue in sctp_sock_dump() (bsc#1220482).
• CVE-2021-46930: Fixed usb/mtu3 list_head check warning (bsc#1220484).
• CVE-2021-46931: Fixed wrong type casting in mlx5e_tx_reporter_dump_sq() (bsc#1220486).
• CVE-2021-46933: Fixed possible underflow in ffs_data_clear() (bsc#1220487).
• CVE-2021-46934: Fixed a bug by validating user data in compat ioctl (bsc#1220469).
• CVE-2021-46936: Fixed use-after-free in tw_timer_handler() (bsc#1220439).
• CVE-2021-47082: Fixed ouble free in tun_free_netdev() (bsc#1220969).
• CVE-2021-47083: Fixed a global-out-of-bounds issue in mediatek: (bsc#1220917).
• CVE-2021-47087: Fixed incorrect page free bug in tee/optee (bsc#1220954).
• CVE-2021-47091: Fixed locking in ieee80211_start_ap()) error path (bsc#1220959).
• CVE-2021-47093: Fixed memleak on registration failure in intel_pmc_core (bsc#1220978).
• CVE-2021-47094: Fixed possible memory leak in KVM x86/mmu (bsc#1221551).
• CVE-2021-47095: Fixed missing initialization in ipmi/ssif (bsc#1220979).
• CVE-2021-47096: Fixed uninitalized user_pversion in ALSA rawmidi (bsc#1220981).
• CVE-2021-47097: Fixed stack out of bound access in elantech_change_report_id() (bsc#1220982).
• CVE-2021-47098: Fixed integer overflow/underflow in hysteresis calculations hwmon: (lm90) (bsc#1220983).
• CVE-2021-47099: Fixed BUG_ON assertion in veth when skb entering GRO are cloned (bsc#1220955).
• CVE-2021-47100: Fixed UAF when uninstall in ipmi (bsc#1220985).
• CVE-2021-47101: Fixed uninit-value in asix_mdio_read() (bsc#1220987).
• CVE-2021-47102: Fixed incorrect structure access In line: upper = info->upper_dev in net/marvell/prestera (bsc#1221009).
• CVE-2021-47104: Fixed memory leak in qib_user_sdma_queue_pkts() (bsc#1220960).
• CVE-2021-47105: Fixed potential memory leak in ice/xsk (bsc#1220961).
• CVE-2021-47107: Fixed READDIR buffer overflow in NFSD (bsc#1220965).
• CVE-2021-47108: Fixed possible NULL pointer dereference for mtk_hdmi_conf in drm/mediatek (bsc#1220986).
• CVE-2022-4744: Fixed double-free that could lead to DoS or privilege escalation in TUN/TAP device driver functionality (bsc#1209635).
• CVE-2022-48626: Fixed a potential use-after-free on remove path moxart (bsc#1220366).
• CVE-2022-48627: Fixed a memory overlapping when deleting chars in the buffer (bsc#1220845).
• CVE-2022-48628: Fixed possible lock in ceph (bsc#1220848).
• CVE-2022-48629: Fixed possible memory leak in qcom-rng (bsc#1220989).
• CVE-2022-48630: Fixed infinite loop on requests not multiple of WORD_SZ in crypto: qcom-rng (bsc#1220990).
• CVE-2023-0160: Fixed deadlock flaw in BPF that could allow a local user to potentially crash the system (bsc#1209657).
• CVE-2023-28746: Fixed Register File Data Sampling (bsc#1213456).
• CVE-2023-35827: Fixed a use-after-free issue in ravb_tx_timeout_work() (bsc#1212514).
• CVE-2023-4881: Fixed a out-of-bounds write flaw in the netfilter subsystem that could lead to potential information disclosure or a denial of service (bsc#1215221).
• CVE-2023-52447: Fixed map_fd_put_ptr() signature kABI workaround (bsc#1220251).
• CVE-2023-52450: Fixed NULL pointer dereference issue in upi_fill_topology() (bsc#1220237).
• CVE-2023-52453: Fixed data corruption in hisi_acc_vfio_pci (bsc#1220337).
• CVE-2023-52454: Fixed a kernel panic when host sends an invalid H2C PDU length (bsc#1220320).
• CVE-2023-52462: Fixed check for attempt to corrupt spilled pointer…

The SUSE Linux Enterprise 15 SP5 kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2021-46925: Fixed kernel panic caused by race of smc_sock (bsc#1220466).
• CVE-2021-46926: Fixed bug when detecting controllers in ALSA/hda/intel-sdw-acpi (bsc#1220478).
• CVE-2021-46927: Fixed assertion bug in nitro_enclaves: Use get_user_pages_unlocked() (bsc#1220443).
• CVE-2021-46929: Fixed use-after-free issue in sctp_sock_dump() (bsc#1220482).
• CVE-2021-46930: Fixed usb/mtu3 list_head check warning (bsc#1220484).
• CVE-2021-46931: Fixed wrong type casting in mlx5e_tx_reporter_dump_sq() (bsc#1220486).
• CVE-2021-46933: Fixed possible underflow in ffs_data_clear() (bsc#1220487).
• CVE-2021-46934: Fixed a bug by validating user data in compat ioctl (bsc#1220469).
• CVE-2021-46936: Fixed use-after-free in tw_timer_handler() (bsc#1220439).
• CVE-2021-47082: Fixed ouble free in tun_free_netdev() (bsc#1220969).
• CVE-2021-47083: Fixed a global-out-of-bounds issue in mediatek: (bsc#1220917).
• CVE-2021-47087: Fixed incorrect page free bug in tee/optee (bsc#1220954).
• CVE-2021-47091: Fixed locking in ieee80211_start_ap()) error path (bsc#1220959).
• CVE-2021-47093: Fixed memleak on registration failure in intel_pmc_core (bsc#1220978).
• CVE-2021-47094: Fixed possible memory leak in KVM x86/mmu (bsc#1221551).
• CVE-2021-47095: Fixed missing initialization in ipmi/ssif (bsc#1220979).
• CVE-2021-47096: Fixed uninitalized user_pversion in ALSA rawmidi (bsc#1220981).
• CVE-2021-47097: Fixed stack out of bound access in elantech_change_report_id() (bsc#1220982).
• CVE-2021-47098: Fixed integer overflow/underflow in hysteresis calculations hwmon: (lm90) (bsc#1220983).
• CVE-2021-47099: Fixed BUG_ON assertion in veth when skb entering GRO are cloned (bsc#1220955).
• CVE-2021-47100: Fixed UAF when uninstall in ipmi (bsc#1220985).
• CVE-2021-47101: Fixed uninit-value in asix_mdio_read() (bsc#1220987).
• CVE-2021-47102: Fixed incorrect structure access In line: upper = info->upper_dev in net/marvell/prestera (bsc#1221009).
• CVE-2021-47104: Fixed memory leak in qib_user_sdma_queue_pkts() (bsc#1220960).
• CVE-2021-47105: Fixed potential memory leak in ice/xsk (bsc#1220961).
• CVE-2021-47107: Fixed READDIR buffer overflow in NFSD (bsc#1220965).
• CVE-2021-47108: Fixed possible NULL pointer dereference for mtk_hdmi_conf in drm/mediatek (bsc#1220986).
• CVE-2022-4744: Fixed double-free that could lead to DoS or privilege escalation in TUN/TAP device driver functionality (bsc#1209635).
• CVE-2022-48626: Fixed a potential use-after-free on remove path moxart (bsc#1220366).
• CVE-2022-48627: Fixed a memory overlapping when deleting chars in the buffer (bsc#1220845).
• CVE-2022-48628: Fixed possible lock in ceph (bsc#1220848).
• CVE-2022-48629: Fixed possible memory leak in qcom-rng (bsc#1220989).
• CVE-2022-48630: Fixed infinite loop on requests not multiple of WORD_SZ in crypto: qcom-rng (bsc#1220990).
• CVE-2023-0160: Fixed deadlock flaw in BPF that could allow a local user to potentially crash the system (bsc#1209657).
• CVE-2023-28746: Fixed Register File Data Sampling (bsc#1213456).
• CVE-2023-35827: Fixed a use-after-free issue in ravb_tx_timeout_work() (bsc#1212514).
• CVE-2023-4881: Fixed a out-of-bounds write flaw in the netfilter subsystem that could lead to potential information disclosure or a denial of service (bsc#1215221).
• CVE-2023-52447: Fixed map_fd_put_ptr() signature kABI workaround (bsc#1220251).
• CVE-2023-52450: Fixed NULL pointer dereference issue in upi_fill_topology() (bsc#1220237).
• CVE-2023-52453: Fixed data corruption in hisi_acc_vfio_pci (bsc#1220337).
• CVE-2023-52454: Fixed a kernel panic when host sends an invalid H2C PDU length (bsc#1220320).
• CVE-2023-52462: Fixed check for attempt to corrupt spilled pointer (bsc#1220325).
• CVE-2023-52463: Fixed null pointer dereference in efivarfs (bsc#1220328).
• CVE-2023-52467: Fixed a null pointer dereference in of_syscon_register…

The SUSE Linux Enterprise 15 SP5 Azure kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2021-46925: Fixed kernel panic caused by race of smc_sock (bsc#1220466).
• CVE-2021-46926: Fixed bug when detecting controllers in ALSA/hda/intel-sdw-acpi (bsc#1220478).
• CVE-2021-46927: Fixed assertion bug in nitro_enclaves: Use get_user_pages_unlocked() (bsc#1220443).
• CVE-2021-46929: Fixed use-after-free issue in sctp_sock_dump() (bsc#1220482).
• CVE-2021-46930: Fixed usb/mtu3 list_head check warning (bsc#1220484).
• CVE-2021-46931: Fixed wrong type casting in mlx5e_tx_reporter_dump_sq() (bsc#1220486).
• CVE-2021-46933: Fixed possible underflow in ffs_data_clear() (bsc#1220487).
• CVE-2021-46936: Fixed use-after-free in tw_timer_handler() (bsc#1220439).
• CVE-2021-47082: Fixed ouble free in tun_free_netdev() (bsc#1220969).
• CVE-2021-47087: Fixed incorrect page free bug in tee/optee (bsc#1220954).
• CVE-2021-47091: Fixed locking in ieee80211_start_ap()) error path (bsc#1220959).
• CVE-2021-47093: Fixed memleak on registration failure in intel_pmc_core (bsc#1220978).
• CVE-2021-47094: Fixed possible memory leak in KVM x86/mmu (bsc#1221551).
• CVE-2021-47095: Fixed missing initialization in ipmi/ssif (bsc#1220979).
• CVE-2021-47096: Fixed uninitalized user_pversion in ALSA rawmidi (bsc#1220981).
• CVE-2021-47097: Fixed stack out of bound access in elantech_change_report_id() (bsc#1220982).
• CVE-2021-47098: Fixed integer overflow/underflow in hysteresis calculations hwmon: (lm90) (bsc#1220983).
• CVE-2021-47099: Fixed BUG_ON assertion in veth when skb entering GRO are cloned (bsc#1220955).
• CVE-2021-47100: Fixed UAF when uninstall in ipmi (bsc#1220985).
• CVE-2021-47101: Fixed uninit-value in asix_mdio_read() (bsc#1220987).
• CVE-2021-47102: Fixed incorrect structure access In line: upper = info->upper_dev in net/marvell/prestera (bsc#1221009).
• CVE-2021-47104: Fixed memory leak in qib_user_sdma_queue_pkts() (bsc#1220960).
• CVE-2021-47105: Fixed potential memory leak in ice/xsk (bsc#1220961).
• CVE-2021-47107: Fixed READDIR buffer overflow in NFSD (bsc#1220965).
• CVE-2021-47108: Fixed possible NULL pointer dereference for mtk_hdmi_conf in drm/mediatek (bsc#1220986).
• CVE-2021-47181: Fixed a null pointer dereference caused by calling platform_get_resource() (bsc#1222660).
• CVE-2021-47182: Fixed buffer length handling in scsi_mode_sense() in scsi core (bsc#1222662).
• CVE-2021-47183: Fixed a null pointer dereference during link down processing in scsi lpfc (bsc#1192145, bsc#1222664).
• CVE-2021-47185: Fixed a softlockup issue in flush_to_ldisc in tty tty_buffer (bsc#1222669).
• CVE-2021-47189: Fixed denial of service due to memory ordering issues between normal and ordered work functions in btrfs (bsc#1222706).
• CVE-2022-4744: Fixed double-free that could lead to DoS or privilege escalation in TUN/TAP device driver functionality (bsc#1209635).
• CVE-2022-48626: Fixed a potential use-after-free on remove path moxart (bsc#1220366).
• CVE-2022-48629: Fixed possible memory leak in qcom-rng (bsc#1220989).
• CVE-2022-48630: Fixed infinite loop on requests not multiple of WORD_SZ in crypto: qcom-rng (bsc#1220990).
• CVE-2023-0160: Fixed deadlock flaw in BPF that could allow a local user to potentially crash the system (bsc#1209657).
• CVE-2023-28746: Fixed Register File Data Sampling (bsc#1213456).
• CVE-2023-35827: Fixed a use-after-free issue in ravb_tx_timeout_work() (bsc#1212514).
• CVE-2023-4881: Fixed a out-of-bounds write flaw in the netfilter subsystem that could lead to potential information disclosure or a denial of service (bsc#1215221).
• CVE-2023-52447: Fixed map_fd_put_ptr() signature kABI workaround (bsc#1220251).
• CVE-2023-52450: Fixed NULL pointer dereference issue in upi_fill_topology() (bsc#1220237).
• CVE-2023-52453: Fixed data corruption in hisi_acc_vfio_pci (bsc#1220337).
• CVE-2023-52454: Fixed a kernel panic when host sends an invalid H2C PDU length…

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

The Linux Enterprise 12 SP5 kernel turned LTSS (Extended Security)

The following security bugs were fixed:

• CVE-2021-46936: Fixed use-after-free in tw_timer_handler() (bsc#1220439).
• CVE-2021-47163: kABI fix for tipc: wait and exit until all work queues are done (bsc#1221980).
• CVE-2021-47612: nfc: fix segfault in nfc_genl_dump_devices_done (bsc#1226585).
• CVE-2022-48809: net: fix a memleak when uncloning an skb dst and its metadata (bsc#1227947).
• CVE-2022-48951: ASoC: ops: Correct bounds check for second channel on SX controls (bsc#1231929).
• CVE-2022-48956: ipv6: avoid use-after-free in ip6_fragment() (bsc#1231893).
• CVE-2022-48958: ethernet: aeroflex: fix potential skb leak in greth_init_rings() (bsc#1231889).
• CVE-2022-48960: net: hisilicon: Fix potential use-after-free in hix5hd2_rx() (bsc#1231979).
• CVE-2022-48962: net: hisilicon: Fix potential use-after-free in hisi_femac_rx() (bsc#1232286).
• CVE-2022-48966: net: mvneta: Fix an out of bounds check (bsc#1232191).
• CVE-2022-48967: NFC: nci: Bounds check struct nfc_target arrays (bsc#1232304).
• CVE-2022-48971: Bluetooth: Fix not cleanup led when bt_init fails (bsc#1232037).
• CVE-2022-48972: mac802154: fix missing INIT_LIST_HEAD in ieee802154_if_add() (bsc#1232025).
• CVE-2022-48973: gpio: amd8111: Fix PCI device reference count leak (bsc#1232039).
• CVE-2022-48978: HID: core: fix shift-out-of-bounds in hid_report_raw_event (bsc#1232038).
• CVE-2022-48991: mm/khugepaged: invoke MMU notifiers in shmem/file collapse paths (bsc#1232070).
• CVE-2022-48992: ASoC: soc-pcm: Add NULL check in BE reparenting (bsc#1232071).
• CVE-2022-49000: iommu/vt-d: Fix PCI device refcount leak in has_external_pci() (bsc#1232123).
• CVE-2022-49002: iommu/vt-d: Fix PCI device refcount leak in dmar_dev_scope_init() (bsc#1232133).
• CVE-2022-49010: hwmon: (coretemp) Check for null before removing sysfs attrs (bsc#1232172).
• CVE-2022-49011: hwmon: (coretemp) fix pci device refcount leak in nv1a_ram_new() (bsc#1232006).
• CVE-2022-49014: net: tun: Fix use-after-free in tun_detach() (bsc#1231890).
• CVE-2022-49015: net: hsr: Fix potential use-after-free (bsc#1231938).
• CVE-2022-49020: net/9p: Fix a potential socket leak in p9_socket_open (bsc#1232175).
• CVE-2022-49021: net: phy: fix null-ptr-deref while probe() failed (bsc#1231939).
• CVE-2022-49026: e100: Fix possible use after free in e100_xmit_prepare (bsc#1231997).
• CVE-2022-49027: iavf: Fix error handling in iavf_init_module() (bsc#1232007).
• CVE-2022-49028: ixgbevf: Fix resource leak in ixgbevf_init_module() (bsc#1231996).
• CVE-2022-49029: hwmon: (ibmpex) Fix possible UAF when ibmpex_register_bmc() fails (bsc#1231995).
• CVE-2023-52898: xhci: Fix null pointer dereference when host dies (bsc#1229568).
• CVE-2023-52918: media: pci: cx23885: check cx23885_vdev_init() return (bsc#1232047).
• CVE-2024-26804: net: ip_tunnel: prevent perpetual headroom growth (bsc#1222629).
• CVE-2024-38538: net: bridge: xmit: make sure we have at least eth header len bytes (bsc#1226606).
• CVE-2024-39476: md/raid5: fix deadlock that raid5d() wait for itself to clear MD_SB_CHANGE_PENDING (bsc#1227437).
• CVE-2024-40965: i2c: lpi2c: Avoid calling clk_get_rate during transfer (bsc#1227885).
• CVE-2024-41082: nvme-fabrics: use reserved tag for reg read/write command (bsc#1228620).
• CVE-2024-42114: netlink: extend policy range validation (bsc#1228564 prerequisite).
• CVE-2024-42253: gpio: pca953x: fix pca953x_irq_bus_sync_unlock race (bsc#1229005 stable-fixes).
• CVE-2024-44931: gpio: prevent potential speculation leaks in gpio_device_get_desc() (bsc#1229837 stable-fixes).
• CVE-2024-44958: sched/smt: Fix unbalance sched_smt_present dec/inc (bsc#1230179).
• CVE-2024-46724: drm/amdgpu: Fix out-of-bounds read of df_v1_7_channel_number (bsc#1230725).
• CVE-2024-46755: wifi: mwifiex: Do not return unused priv in mwifiex_get_priv_by_id() (bsc#1230802). -…

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

The Linux Enterprise 12 SP5 kernel turned LTSS (Extended Security)

The following security bugs were fixed:

• CVE-2021-46936: Fixed use-after-free in tw_timer_handler() (bsc#1220439).
• CVE-2021-47163: kABI fix for tipc: wait and exit until all work queues are done (bsc#1221980).
• CVE-2021-47612: nfc: fix segfault in nfc_genl_dump_devices_done (bsc#1226585).
• CVE-2022-48809: net: fix a memleak when uncloning an skb dst and its metadata (bsc#1227947).
• CVE-2022-48951: ASoC: ops: Correct bounds check for second channel on SX controls (bsc#1231929).
• CVE-2022-48956: ipv6: avoid use-after-free in ip6_fragment() (bsc#1231893).
• CVE-2022-48958: ethernet: aeroflex: fix potential skb leak in greth_init_rings() (bsc#1231889).
• CVE-2022-48960: net: hisilicon: Fix potential use-after-free in hix5hd2_rx() (bsc#1231979).
• CVE-2022-48962: net: hisilicon: Fix potential use-after-free in hisi_femac_rx() (bsc#1232286).
• CVE-2022-48966: net: mvneta: Fix an out of bounds check (bsc#1232191).
• CVE-2022-48967: NFC: nci: Bounds check struct nfc_target arrays (bsc#1232304).
• CVE-2022-48971: Bluetooth: Fix not cleanup led when bt_init fails (bsc#1232037).
• CVE-2022-48972: mac802154: fix missing INIT_LIST_HEAD in ieee802154_if_add() (bsc#1232025).
• CVE-2022-48973: gpio: amd8111: Fix PCI device reference count leak (bsc#1232039).
• CVE-2022-48978: HID: core: fix shift-out-of-bounds in hid_report_raw_event (bsc#1232038).
• CVE-2022-48991: mm/khugepaged: invoke MMU notifiers in shmem/file collapse paths (bsc#1232070).
• CVE-2022-48992: ASoC: soc-pcm: Add NULL check in BE reparenting (bsc#1232071).
• CVE-2022-49000: iommu/vt-d: Fix PCI device refcount leak in has_external_pci() (bsc#1232123).
• CVE-2022-49002: iommu/vt-d: Fix PCI device refcount leak in dmar_dev_scope_init() (bsc#1232133).
• CVE-2022-49010: hwmon: (coretemp) Check for null before removing sysfs attrs (bsc#1232172).
• CVE-2022-49011: hwmon: (coretemp) fix pci device refcount leak in nv1a_ram_new() (bsc#1232006).
• CVE-2022-49014: net: tun: Fix use-after-free in tun_detach() (bsc#1231890).
• CVE-2022-49015: net: hsr: Fix potential use-after-free (bsc#1231938).
• CVE-2022-49020: net/9p: Fix a potential socket leak in p9_socket_open (bsc#1232175).
• CVE-2022-49021: net: phy: fix null-ptr-deref while probe() failed (bsc#1231939).
• CVE-2022-49026: e100: Fix possible use after free in e100_xmit_prepare (bsc#1231997).
• CVE-2022-49027: iavf: Fix error handling in iavf_init_module() (bsc#1232007).
• CVE-2022-49028: ixgbevf: Fix resource leak in ixgbevf_init_module() (bsc#1231996).
• CVE-2022-49029: hwmon: (ibmpex) Fix possible UAF when ibmpex_register_bmc() fails (bsc#1231995).
• CVE-2023-52898: xhci: Fix null pointer dereference when host dies (bsc#1229568).
• CVE-2023-52918: media: pci: cx23885: check cx23885_vdev_init() return (bsc#1232047).
• CVE-2024-26804: net: ip_tunnel: prevent perpetual headroom growth (bsc#1222629).
• CVE-2024-38538: net: bridge: xmit: make sure we have at least eth header len bytes (bsc#1226606).
• CVE-2024-39476: md/raid5: fix deadlock that raid5d() wait for itself to clear MD_SB_CHANGE_PENDING (bsc#1227437).
• CVE-2024-40965: i2c: lpi2c: Avoid calling clk_get_rate during transfer (bsc#1227885).
• CVE-2024-41082: nvme-fabrics: use reserved tag for reg read/write command (bsc#1228620).
• CVE-2024-42114: netlink: extend policy range validation (bsc#1228564 prerequisite).
• CVE-2024-42253: gpio: pca953x: fix pca953x_irq_bus_sync_unlock race (bsc#1229005 stable-fixes).
• CVE-2024-44931: gpio: prevent potential speculation leaks in gpio_device_get_desc() (bsc#1229837 stable-fixes).
• CVE-2024-44958: sched/smt: Fix unbalance sched_smt_present dec/inc (bsc#1230179).
• CVE-2024-46724: drm/amdgpu: Fix out-of-bounds read of df_v1_7_channel_number (bsc#1230725).
• CVE-2024-46755: wifi: mwifiex: Do not return unused priv in mwifiex_get_priv_by_id() (bsc#1230802). -…

It was discovered that a race condition existed in the instruction emulator of the Linux kernel on Arm 64-bit systems. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-20422)

Wei Chen discovered that a race condition existed in the TIPC protocol implementation in the Linux kernel, leading to a null pointer dereference vulnerability. A local attacker could use this to cause a denial of service (system crash). (CVE-2023-1382)

Jose Oliveira and Rodrigo Branco discovered that the Spectre Variant 2 mitigations with prctl syscall were insufficient in some situations. A local attacker could possibly use this to expose sensitive information. (CVE-2023-1998)

Daniele Antonioli discovered that the Secure Simple Pairing and Secure Connections pairing in the Bluetooth protocol could allow an unauthenticated user to complete authentication without pairing credentials. A physically proximate attacker placed between two Bluetooth devices could use this to subsequently impersonate one of the paired devices. (CVE-2023-24023)

shanzhulig discovered that the DRM subsystem in the Linux kernel contained a race condition when performing certain operation while handling driver unload, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-51043)

It was discovered that a race condition existed in the Bluetooth subsystem of the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-51779)

It was discovered that the device mapper driver in the Linux kernel did not properly validate target size during certain memory allocations. A local attacker could use this to cause a denial of service (system crash). (CVE-2023-52429, CVE-2024-23851)

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems:

• Architecture specifics;
• ACPI drivers;
• I2C subsystem;
• Media drivers;
• JFS file system;
• IPv4 Networking;
• Open vSwitch; (CVE-2021-46966, CVE-2021-46936, CVE-2023-52451, CVE-2019-25162, CVE-2023-52445, CVE-2023-52600, CVE-2021-46990, CVE-2021-46955, CVE-2023-52603)