CVE-2021-47131

The Linux Kernel, the operating system core itself.

Security Fix(es):

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

i2c: img-scb: fix reference leak when pm_runtime_get_sync fails

The PM reference count is not expected to be incremented on return in functions img_i2c_xfer and img_i2c_init.

However, pm_runtime_get_sync will increment the PM reference count even failed. Forgetting to putting operation will result in a reference leak here.

Replace it with pm_runtime_resume_and_get to keep usage counter balanced.(CVE-2020-36783)

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

kyber: fix out of bounds access when preempted

__blk_mq_sched_bio_merge() gets the ctx and hctx for the current CPU and passes the hctx to ->bio_merge(). kyber_bio_merge() then gets the ctx for the current CPU again and uses that to get the corresponding Kyber context in the passed hctx. However, the thread may be preempted between the two calls to blk_mq_get_ctx(), and the ctx returned the second time may no longer correspond to the passed hctx. This "works" accidentally most of the time, but it can cause us to read garbage if the second ctx came from an hctx with more ctx's than the first one (i.e., if ctx->index_hw[hctx->type] > hctx->nr_ctx).

This manifested as this UBSAN array index out of bounds error reported by Jakub:

UBSAN: array-index-out-of-bounds in ../kernel/locking/qspinlock.c:130:9 index 13106 is out of range for type 'long unsigned int [128]' Call Trace: dump_stack+0xa4/0xe5 ubsan_epilogue+0x5/0x40 __ubsan_handle_out_of_bounds.cold.13+0x2a/0x34 queued_spin_lock_slowpath+0x476/0x480 do_raw_spin_lock+0x1c2/0x1d0 kyber_bio_merge+0x112/0x180 blk_mq_submit_bio+0x1f5/0x1100 submit_bio_noacct+0x7b0/0x870 submit_bio+0xc2/0x3a0 btrfs_map_bio+0x4f0/0x9d0 btrfs_submit_data_bio+0x24e/0x310 submit_one_bio+0x7f/0xb0 submit_extent_page+0xc4/0x440 __extent_writepage_io+0x2b8/0x5e0 __extent_writepage+0x28d/0x6e0 extent_write_cache_pages+0x4d7/0x7a0 extent_writepages+0xa2/0x110 do_writepages+0x8f/0x180 __writeback_single_inode+0x99/0x7f0 writeback_sb_inodes+0x34e/0x790 __writeback_inodes_wb+0x9e/0x120 wb_writeback+0x4d2/0x660 wb_workfn+0x64d/0xa10 process_one_work+0x53a/0xa80 worker_thread+0x69/0x5b0 kthread+0x20b/0x240 ret_from_fork+0x1f/0x30

Only Kyber uses the hctx, so fix it by passing the request_queue to ->bio_merge() instead. BFQ and mq-deadline just use that, and Kyber can map the queues itself to avoid the mismatch.(CVE-2021-46984)

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

bus: qcom: Put child node before return

Put child node before return to fix potential reference count leak. Generally, the reference count of child is incremented and decremented automatically in the macro for_each_available_child_of_node() and should be decremented manually if the loop is broken in loop body.(CVE-2021-47054)

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

crypto: qat - ADF_STATUS_PF_RUNNING should be set after adf_dev_init

ADF_STATUS_PF_RUNNING is (only) used and checked by adf_vf2pf_shutdown() before calling adf_iov_putmsg()->mutex_lock(vf2pf_lock), however the vf2pf_lock is initialized in adf_dev_init(), which can fail and when it fail, the vf2pf_lock is either not initialized or destroyed, a subsequent use of vf2pf_lock will cause issue. To fix this issue, only set this flag if adf_dev_init() returns 0.

[ 7.178404] BUG: KASAN: user-memory-access in __mutex_lock.isra.0+0x1ac/0x7c0 [ 7.180345] Call Trace: [ 7.182576] mutex_lock+0xc9/0xd0 [ 7.183257] adf_iov_putmsg+0x118/0x1a0 [intel_qat] [ 7.183541] adf_vf2pf_shutdown+0x4d/0x7b [intel_qat] [ 7.183834] adf_dev_shutdown+0x172/0x2b0 [intel_qat] [ 7.184127] adf_probe+0x5e9/0x600 qat_dh895xccvf

In the Linux kernel, the following vulnerability has been…

The Linux Kernel, the operating system core itself.

Security Fix(es):

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

i2c: img-scb: fix reference leak when pm_runtime_get_sync fails

The PM reference count is not expected to be incremented on return in functions img_i2c_xfer and img_i2c_init.

However, pm_runtime_get_sync will increment the PM reference count even failed. Forgetting to putting operation will result in a reference leak here.

Replace it with pm_runtime_resume_and_get to keep usage counter balanced.(CVE-2020-36783)

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

kyber: fix out of bounds access when preempted

__blk_mq_sched_bio_merge() gets the ctx and hctx for the current CPU and passes the hctx to ->bio_merge(). kyber_bio_merge() then gets the ctx for the current CPU again and uses that to get the corresponding Kyber context in the passed hctx. However, the thread may be preempted between the two calls to blk_mq_get_ctx(), and the ctx returned the second time may no longer correspond to the passed hctx. This "works" accidentally most of the time, but it can cause us to read garbage if the second ctx came from an hctx with more ctx's than the first one (i.e., if ctx->index_hw[hctx->type] > hctx->nr_ctx).

This manifested as this UBSAN array index out of bounds error reported by Jakub:

UBSAN: array-index-out-of-bounds in ../kernel/locking/qspinlock.c:130:9 index 13106 is out of range for type 'long unsigned int [128]' Call Trace: dump_stack+0xa4/0xe5 ubsan_epilogue+0x5/0x40 __ubsan_handle_out_of_bounds.cold.13+0x2a/0x34 queued_spin_lock_slowpath+0x476/0x480 do_raw_spin_lock+0x1c2/0x1d0 kyber_bio_merge+0x112/0x180 blk_mq_submit_bio+0x1f5/0x1100 submit_bio_noacct+0x7b0/0x870 submit_bio+0xc2/0x3a0 btrfs_map_bio+0x4f0/0x9d0 btrfs_submit_data_bio+0x24e/0x310 submit_one_bio+0x7f/0xb0 submit_extent_page+0xc4/0x440 __extent_writepage_io+0x2b8/0x5e0 __extent_writepage+0x28d/0x6e0 extent_write_cache_pages+0x4d7/0x7a0 extent_writepages+0xa2/0x110 do_writepages+0x8f/0x180 __writeback_single_inode+0x99/0x7f0 writeback_sb_inodes+0x34e/0x790 __writeback_inodes_wb+0x9e/0x120 wb_writeback+0x4d2/0x660 wb_workfn+0x64d/0xa10 process_one_work+0x53a/0xa80 worker_thread+0x69/0x5b0 kthread+0x20b/0x240 ret_from_fork+0x1f/0x30

Only Kyber uses the hctx, so fix it by passing the request_queue to ->bio_merge() instead. BFQ and mq-deadline just use that, and Kyber can map the queues itself to avoid the mismatch.(CVE-2021-46984)

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

bus: qcom: Put child node before return

Put child node before return to fix potential reference count leak. Generally, the reference count of child is incremented and decremented automatically in the macro for_each_available_child_of_node() and should be decremented manually if the loop is broken in loop body.(CVE-2021-47054)

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

crypto: qat - ADF_STATUS_PF_RUNNING should be set after adf_dev_init

ADF_STATUS_PF_RUNNING is (only) used and checked by adf_vf2pf_shutdown() before calling adf_iov_putmsg()->mutex_lock(vf2pf_lock), however the vf2pf_lock is initialized in adf_dev_init(), which can fail and when it fail, the vf2pf_lock is either not initialized or destroyed, a subsequent use of vf2pf_lock will cause issue. To fix this issue, only set this flag if adf_dev_init() returns 0.

[ 7.178404] BUG: KASAN: user-memory-access in __mutex_lock.isra.0+0x1ac/0x7c0 [ 7.180345] Call Trace: [ 7.182576] mutex_lock+0xc9/0xd0 [ 7.183257] adf_iov_putmsg+0x118/0x1a0 [intel_qat] [ 7.183541] adf_vf2pf_shutdown+0x4d/0x7b [intel_qat] [ 7.183834] adf_dev_shutdown+0x172/0x2b0 [intel_qat] [ 7.184127] adf_probe+0x5e9/0x600 qat_dh895xccvf

In the Linux kernel, the following vulnerability has been…

In the Linux kernel, the following vulnerability has been resolved: net/tls: Fix use-after-free after the TLS device goes down and up When a netdev with active TLS offload goes down, tls_device_down is called to stop the offload and tear down the TLS context. However, the socket stays alive, and it still points to the TLS context, which is now deallocated. If a netdev goes up, while the connection is still active, and the data flow resumes after a number of TCP retransmissions, it will lead to a use-after-free of the TLS context. This commit addresses this bug by keeping the context alive until its normal destruction, and implements the necessary fallbacks, so that the connection can resume in software (non-offloaded) kTLS mode. On the TX side tls_sw_fallback is used to encrypt all packets. The RX side already has all the necessary fallbacks, because receiving non-decrypted packets is supported. The thing needed on the RX side is to block resync requests, which are normally produced after receiving non-decrypted packets. The necessary synchronization is implemented for a graceful teardown: first the fallbacks are deployed, then the driver resources are released (it used to be possible to have a tls_dev_resync after tls_dev_del). A new flag called TLS_RX_DEV_DEGRADED is added to indicate the fallback mode. It's used to skip the RX resync logic completely, as it becomes useless, and some objects may be released (for example, resync_async, which is allocated and freed by the driver).

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

The following security bugs were fixed:

• CVE-2024-26840: Fixed a memory leak in cachefiles_add_cache() (bsc#1222976).
• CVE-2021-47113: Abort btrfs rename_exchange if we fail to insert the second ref (bsc#1221543).
• CVE-2021-47131: Fixed a use-after-free after the TLS device goes down and up (bsc#1221545).
• CVE-2024-26852: Fixed net/ipv6 to avoid possible UAF in ip6_route_mpath_notify() (bsc#1223057).
• CVE-2021-46955: Fixed an out-of-bounds read with openvswitch, when fragmenting IPv4 packets (bsc#1220513).
• CVE-2024-26862: Fixed packet annotate data-races around ignore_outgoing (bsc#1223111).
• CVE-2024-0639: Fixed a denial-of-service vulnerability due to a deadlock found in sctp_auto_asconf_init in net/sctp/socket.c (bsc#1218917).
• CVE-2024-27043: Fixed a use-after-free in edia/dvbdev in different places (bsc#1223824).
• CVE-2022-48631: Fixed a bug in ext4, when parsing extents where eh_entries == 0 and eh_depth > 0 (bsc#1223475).
• CVE-2024-23307: Fixed Integer Overflow or Wraparound vulnerability in x86 and ARM md, raid, raid5 modules (bsc#1219169).
• CVE-2022-48651: Fixed an out-of-bound bug in ipvlan caused by unset skb->mac_header (bsc#1223513).
• CVE-2024-26906: Disallowed vsyscall page read for copy_from_kernel_nofault() (bsc#1223202).
• CVE-2024-26816: Fixed relocations in .notes section when building with CONFIG_XEN_PV=y by ignoring them (bsc#1222624).
• CVE-2024-26610: Fixed memory corruption in wifi/iwlwifi (bsc#1221299).
• CVE-2024-26689: Fixed a use-after-free in encode_cap_msg() (bsc#1222503).
• CVE-2021-47041: Don't set sk_user_data without write_lock (bsc#1220755).
• CVE-2021-47074: Fixed memory leak in nvme_loop_create_ctrl() (bsc#1220854).
• CVE-2024-26744: Fixed null pointer dereference in srpt_service_guid parameter in rdma/srpt (bsc#1222449).

The following non-security bugs were fixed:

• dm rq: do not queue request to blk-mq during DM suspend (bsc#1221113).
• dm: rearrange core declarations for extended use from dm-zone.c (bsc#1221113).
• net/tls: Remove the context from the list in tls_device_down (bsc#1221545).
• tls: Fix context leak on tls_device_down (bsc#1221545).

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

The following security bugs were fixed:

• CVE-2019-25160: Fixed out-of-bounds memory accesses in netlabel (bsc#1220394).
• CVE-2020-36312: Fixed an issue in virt/kvm/kvm_main.c that had a kvm_io_bus_unregister_dev memory leak upon a kmalloc failure (bsc#1184509).
• CVE-2021-23134: Fixed a use-after-free issue in nfc sockets (bsc#1186060).
• CVE-2021-46904: Fixed NULL pointer dereference during tty device unregistration (bsc#1220416).
• CVE-2021-46905: Fixed NULL pointer dereference on disconnect regression (bsc#1220418).
• CVE-2021-46909: Fixed a PCI interrupt mapping in ARM footbridge (bsc#1220442).
• CVE-2021-46938: Fixed a double free of blk_mq_tag_set in dev remove after table load fails in dm rq (bsc#1220554).
• CVE-2021-46939: Fixed a denial of service in trace_clock_global() in tracing (bsc#1220580).
• CVE-2021-46941: Fixed core softreset when switch mode in usb dwc3 (bsc#1220628).
• CVE-2021-46950: Fixed a data corruption bug in raid1 arrays using bitmaps in md/raid1 (bsc#1220662).
• CVE-2021-46955: Fixed an out-of-bounds read with openvswitch, when fragmenting IPv4 packets (bsc#1220513).
• CVE-2021-46958: Fixed a race between transaction aborts and fsyncs leading to use-after-free in btrfs (bsc#1220521).
• CVE-2021-46960: Fixed a warning on smb2_get_enc_key in cifs (bsc#1220528).
• CVE-2021-46963: Fixed crash in qla2xxx_mqueuecommand() (bsc#1220536).
• CVE-2021-46964: Fixed unreserved extra IRQ vectors in qla2xxx (bsc#1220538).
• CVE-2021-46966: Fixed potential use-after-free issue in cm_write() (bsc#1220572).
• CVE-2021-46981: Fixed a NULL pointer in flush_workqueue in nbd (bsc#1220611).
• CVE-2021-46988: Fixed release page in error path to avoid BUG_ON (bsc#1220706).
• CVE-2021-46990: Fixed a denial of service when toggling entry flush barrier in powerpc/64s (bsc#1220743).
• CVE-2021-46998: Fixed an use after free bug in enic_hard_start_xmit in ethernet/enic (bsc#1220625).
• CVE-2021-47006: Fixed wrong check in overflow_handler hook in ARM 9064/1 hw_breakpoint (bsc#1220751).
• CVE-2021-47015: Fixed a RX consumer index logic in the error path in bnxt_rx_pkt() in bnxt_en (bsc#1220794).
• CVE-2021-47024: Fixed possible memory leak in vsock/virtio when closing socket (bsc#1220637).
• CVE-2021-47034: Fixed a kernel memory fault for pte update on radix in powerpc/64s (bsc#1220687).
• CVE-2021-47045: Fixed a null pointer dereference in lpfc_prep_els_iocb() in scsi lpfc (bsc#1220640).
• CVE-2021-47049: Fixed an after free in __vmbus_open() in hv vmbus (bsc#1220692).
• CVE-2021-47055: Fixed missing permissions for locking and badblock ioctls in mtd (bsc#1220768).
• CVE-2021-47056: Fixed a user-memory-access error on vf2pf_lock in crypto (bsc#1220769).
• CVE-2021-47060: Fixed a bug in KVM by stop looking for coalesced MMIO zones if the bus is destroyed (bsc#1220742).
• CVE-2021-47061: Fixed a bug in KVM by destroy I/O bus devices on unregister failure after sync'ing SRCU (bsc#1220745).
• CVE-2021-47063: Fixed a potential use-after-free during bridge detach in drm bridge/panel (bsc#1220777).
• CVE-2021-47068: Fixed a use-after-free issue in llcp_sock_bind/connect (bsc#1220739).
• CVE-2021-47070: Fixed memory leak in error handling paths in uio_hv_generic (bsc#1220829).
• CVE-2021-47071: Fixed a memory leak in error handling paths in hv_uio_cleanup() in uio_hv_generic (bsc#1220846).
• CVE-2021-47073: Fixed oops on rmmod dell_smbios init_dell_smbios_wmi() (bsc#1220850).
• CVE-2021-47100: Fixed UAF when uninstall in ipmi (bsc#1220985).
• CVE-2021-47101: Fixed uninit-value in asix_mdio_read() (bsc#1220987).
• CVE-2021-47104: Fixed memory leak in qib_user_sdma_queue_pkts() (bsc#1220960).
• CVE-2021-47110: Fixed possible memory corruption when restoring from hibernation in x86/kvm (bsc#1221532).
• CVE-2021-47112: Fixed possible memory corruption when restoring from hibernation in x86/kvm (bsc#1221541).
• CVE-2021-47113: Abort…

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

The following security bugs were fixed:

• CVE-2024-26840: Fixed a memory leak in cachefiles_add_cache() (bsc#1222976).
• CVE-2021-47113: Abort btrfs rename_exchange if we fail to insert the second ref (bsc#1221543).
• CVE-2021-47131: Fixed a use-after-free after the TLS device goes down and up (bsc#1221545).
• CVE-2024-26852: Fixed net/ipv6 to avoid possible UAF in ip6_route_mpath_notify() (bsc#1223057).
• CVE-2021-46955: Fixed an out-of-bounds read with openvswitch, when fragmenting IPv4 packets (bsc#1220513).
• CVE-2024-26862: Fixed packet annotate data-races around ignore_outgoing (bsc#1223111).
• CVE-2024-0639: Fixed a denial-of-service vulnerability due to a deadlock found in sctp_auto_asconf_init in net/sctp/socket.c (bsc#1218917).
• CVE-2024-27043: Fixed a use-after-free in edia/dvbdev in different places (bsc#1223824).
• CVE-2022-48631: Fixed a bug in ext4, when parsing extents where eh_entries == 0 and eh_depth > 0 (bsc#1223475).
• CVE-2024-23307: Fixed Integer Overflow or Wraparound vulnerability in x86 and ARM md, raid, raid5 modules (bsc#1219169).
• CVE-2022-48651: Fixed an out-of-bound bug in ipvlan caused by unset skb->mac_header (bsc#1223513).
• CVE-2024-26906: Disallowed vsyscall page read for copy_from_kernel_nofault() (bsc#1223202).
• CVE-2024-26816: Fixed relocations in .notes section when building with CONFIG_XEN_PV=y by ignoring them (bsc#1222624).
• CVE-2021-47207: Fixed a null pointer dereference on pointer block in gus (bsc#1222790).
• CVE-2024-26610: Fixed memory corruption in wifi/iwlwifi (bsc#1221299).
• CVE-2024-26689: Fixed a use-after-free in encode_cap_msg() (bsc#1222503).
• CVE-2021-47041: Don't set sk_user_data without write_lock (bsc#1220755).
• CVE-2021-47074: Fixed memory leak in nvme_loop_create_ctrl() (bsc#1220854).
• CVE-2024-26744: Fixed null pointer dereference in srpt_service_guid parameter in rdma/srpt (bsc#1222449).

The following non-security bugs were fixed:

• dm rq: do not queue request to blk-mq during DM suspend (bsc#1221113).
• dm: rearrange core declarations for extended use from dm-zone.c (bsc#1221113).
• net/tls: Remove the context from the list in tls_device_down (bsc#1221545).
• tls: Fix context leak on tls_device_down (bsc#1221545).

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

The following security bugs were fixed:

• CVE-2024-26840: Fixed a memory leak in cachefiles_add_cache() (bsc#1222976).
• CVE-2021-47113: Abort btrfs rename_exchange if we fail to insert the second ref (bsc#1221543).
• CVE-2021-47131: Fixed a use-after-free after the TLS device goes down and up (bsc#1221545).
• CVE-2024-26852: Fixed net/ipv6 to avoid possible UAF in ip6_route_mpath_notify() (bsc#1223057).
• CVE-2021-46955: Fixed an out-of-bounds read with openvswitch, when fragmenting IPv4 packets (bsc#1220513).
• CVE-2024-26862: Fixed packet annotate data-races around ignore_outgoing (bsc#1223111).
• CVE-2024-0639: Fixed a denial-of-service vulnerability due to a deadlock found in sctp_auto_asconf_init in net/sctp/socket.c (bsc#1218917).
• CVE-2024-27043: Fixed a use-after-free in edia/dvbdev in different places (bsc#1223824).
• CVE-2022-48631: Fixed a bug in ext4, when parsing extents where eh_entries == 0 and eh_depth > 0 (bsc#1223475).
• CVE-2024-23307: Fixed Integer Overflow or Wraparound vulnerability in x86 and ARM md, raid, raid5 modules (bsc#1219169).
• CVE-2022-48651: Fixed an out-of-bound bug in ipvlan caused by unset skb->mac_header (bsc#1223513).
• CVE-2024-26816: Fixed relocations in .notes section when building with CONFIG_XEN_PV=y by ignoring them (bsc#1222624).
• CVE-2024-26906: Disallowed vsyscall page read for copy_from_kernel_nofault() (bsc#1223202).
• CVE-2024-26689: Fixed a use-after-free in encode_cap_msg() (bsc#1222503).
• CVE-2021-47041: Don't set sk_user_data without write_lock (bsc#1220755).
• CVE-2021-47074: Fixed memory leak in nvme_loop_create_ctrl() (bsc#1220854).
• CVE-2024-26744: Fixed null pointer dereference in srpt_service_guid parameter in rdma/srpt (bsc#1222449).

The following non-security bugs were fixed:

• net/tls: Remove the context from the list in tls_device_down (bsc#1221545).
• tls: Fix context leak on tls_device_down (bsc#1221545).

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

The following security bugs were fixed:

• CVE-2024-26921: Preserve kabi for sk_buff (bsc#1223138).
• CVE-2022-48686: Fix UAF when detecting digest errors (bsc#1223948).
• CVE-2021-47074: Fixed memory leak in nvme_loop_create_ctrl() (bsc#1220854).
• CVE-2021-47378: Destroy cm id before destroy qp to avoid use after free (bsc#1225201).
• CVE-2022-48697: Fix a use-after-free (bsc#1223922).
• CVE-2024-26846: Do not wait in vain when unloading module (bsc#1223023).
• CVE-2021-47496: Fix flipped sign in tls_err_abort() calls (bsc#1225354)
• CVE-2023-42755: Check user supplied offsets (bsc#1215702).
• CVE-2023-52664: Eliminate double free in error handling logic (bsc#1224747).
• CVE-2023-52796: Add ipvlan_route_v6_outbound() helper (bsc#1224930).
• CVE-2021-47246: Fix page reclaim for dead peer hairpin (bsc#1224831).
• CVE-2023-52732: Blocklist the kclient when receiving corrupted snap trace (bsc#1225222).
• CVE-2024-35936: Add missing mutex_unlock in btrfs_relocate_sys_chunks() (bsc#1224644)
• CVE-2021-47548: Fixed a possible array out-of-bounds (bsc#1225506)
• CVE-2024-36029: Pervent access to suspended controller (bsc#1225708)
• CVE-2024-26625: Call sock_orphan() at release time (bsc#1221086)
• CVE-2021-47352: Add validation for used length (bsc#1225124).
• CVE-2023-52698: Fixed memory leak in netlbl_calipso_add_pass() (bsc#1224621)
• CVE-2021-47431: Fix gart.bo pin_count leak (bsc#1225390).
• CVE-2024-35935: Handle path ref underflow in header iterate_inode_ref() (bsc#1224645)
• CVE-2024-26828: Fixed underflow in parse_server_interfaces() (bsc#1223084).
• CVE-2021-47423: Fix file release memory leak (bsc#1225366).
• CVE-2022-48710: Fix a possible null pointer dereference (bsc#1225230).
• CVE-2021-47497: Fixed shift-out-of-bound (UBSAN) with byte size cells (bsc#1225355).
• CVE-2024-35932: Do not check if plane->state->fb == state->fb (bsc#1224650).
• CVE-2021-47500: Fixed trigger reference couting (bsc#1225360).
• CVE-2024-35809: Drain runtime-idle callbacks before driver removal (bsc#1224738).
• CVE-2021-47383: Fiedx out-of-bound vmalloc access in imageblit (bsc#1225208).
• CVE-2021-47511: Fixed negative period/buffer sizes (bsc#1225411).
• CVE-2021-47509: Limit the period size to 16MB (bsc#1225409).
• CVE-2024-35877: Fixed VM_PAT handling in COW mappings (bsc#1224525).
• CVE-2024-35982: Avoid infinite loop trying to resize local TT (bsc#1224566)
• CVE-2024-35969: Fixed race condition between ipv6_get_ifaddr and ipv6_del_addr (bsc#1224580).
• CVE-2021-47277: Avoid speculation-based attacks from out-of-range memslot accesses (bsc#1224960).
• CVE-2024-35791: Flush pages under kvm->lock to fix UAF in svm_register_enc_region() (bsc#1224725).
• CVE-2021-47401: Fix stack information leak (bsc#1225242).
• CVE-2023-52867: Fix possible buffer overflow (bsc#1225009).
• CVE-2023-52821: Fix a possible null pointer dereference (bsc#1225022).
• CVE-2021-47265: Verify port when creating flow rule (bsc#1224957)
• CVE-2021-47362: Update intermediate power state for SI (bsc#1225153).
• CVE-2021-47361: Fix error handling in mcb_alloc_bus() (bsc#1225151).
• CVE-2023-52864: Fix opening of char device (bsc#1225132).
• CVE-2022-48708: Fix potential NULL dereference (bsc#1224942).
• CVE-2024-35944: Fixed memcpy() run-time warning in dg_dispatch_as_host() (bsc#1224648).
• CVE-2021-47238: Fix memory leak in ip_mc_add1_src (bsc#1224847)
• CVE-2023-52730: Fix possible resource leaks in some error paths (bsc#1224956).
• CVE-2021-47355: Fix possible use-after-free in nicstar_cleanup() (bsc#1225141).
• CVE-2021-47245: Fix out of bounds when parsing TCP options (bsc#1224838)
• CVE-2024-35878: Prevent NULL pointer dereference in vsnprintf() (bsc#1224671).
• CVE-2023-52747: Restore allocated resources on failed copyout (bsc#1224931)
• CVE-2021-47249: Fix memory leak in rds_recvmsg (bsc#1224880)
• CVE-2021-47397: Break out if skb_header_pointer returns NULL in…

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

The following security bugs were fixed:

• CVE-2021-46933: Fixed possible underflow in ffs_data_clear() (bsc#1220487).
• CVE-2021-46955: Fixed an out-of-bounds read with openvswitch, when fragmenting IPv4 packets (bsc#1220513).
• CVE-2021-47074: Fixed memory leak in nvme_loop_create_ctrl() (bsc#1220854).
• CVE-2021-47113: Abort btrfs rename_exchange if we fail to insert the second ref (bsc#1221543).
• CVE-2021-47131: Fixed a use-after-free after the TLS device goes down and up (bsc#1221545).
• CVE-2021-47206: Check return value after calling platform_get_resource() (bsc#1222894).
• CVE-2021-47238: Fixed memory leak in ip_mc_add1_src (bsc#1224847)
• CVE-2021-47245: Fixed out of bounds when parsing TCP options (bsc#1224838)
• CVE-2021-47246: Fixed page reclaim for dead peer hairpin (CVE-2021-47246 bsc#1224831).
• CVE-2021-47249: Fixed memory leak in rds_recvmsg (bsc#1224880)
• CVE-2021-47250: Fixed memory leak in netlbl_cipsov4_add_std (bsc#1224827)
• CVE-2021-47265: Verify port when creating flow rule (bsc#1224957)
• CVE-2021-47277: Avoid speculation-based attacks from out-of-range memslot accesses (bsc#1224960).
• CVE-2021-47281: Fixed race of snd_seq_timer_open() (bsc#1224983).
• CVE-2021-47334: Fixed two use after free in ibmasm_init_one (bsc#1225112).
• CVE-2021-47352: Add validation for used length (bsc#1225124).
• CVE-2021-47355: Fixed possible use-after-free in nicstar_cleanup() (bsc#1225141).
• CVE-2021-47357: Fixed possible use-after-free in ia_module_exit() (bsc#1225144).
• CVE-2021-47361: Fixed error handling in mcb_alloc_bus() (bsc#1225151).
• CVE-2021-47362: Update intermediate power state for SI (bsc#1225153).
• CVE-2021-47378: Destroy cm id before destroy qp to avoid use after free (bsc#1225201).
• CVE-2021-47383: Fixed out-of-bound vmalloc access in imageblit (bsc#1225208).
• CVE-2021-47397: Break out if skb_header_pointer returns NULL in sctp_rcv_ootb (bsc#1225082)
• CVE-2021-47401: Fixed stack information leak (bsc#1225242).
• CVE-2021-47423: Fixed file release memory leak (bsc#1225366).
• CVE-2021-47431: Fixed gart.bo pin_count leak (bsc#1225390).
• CVE-2021-47469: Add SPI fix commit to be ignored (bsc#1225347)
• CVE-2021-47483: Fixed possible double-free in regcache_rbtree_exit() (bsc#1224907).
• CVE-2021-47496: Fix flipped sign in tls_err_abort() calls (bsc#1225354)
• CVE-2021-47497: Fixed shift-out-of-bound (UBSAN) with byte size cells (bsc#1225355).
• CVE-2021-47500: Fixed trigger reference couting (bsc#1225360).
• CVE-2021-47509: Limit the period size to 16MB (bsc#1225409).
• CVE-2021-47511: Fixed negative period/buffer sizes (bsc#1225411).
• CVE-2021-47548: Fixed a possible array out-of=bounds (bsc#1225506)
• CVE-2022-48672: Fixed off-by-one error in unflatten_dt_nodes() (CVE-2022-48672 bsc#1223931).
• CVE-2022-48686: Fixed UAF when detecting digest errors (bsc#1223948).
• CVE-2022-48697: Fixed a use-after-free (bsc#1223922).
• CVE-2022-48702: Fixed out of bounds access in snd_emu10k1_pcm_channel_alloc() (bsc#1223923).
• CVE-2022-48704: Add a force flush to delay work when radeon (bsc#1223932)
• CVE-2022-48708: Fixed potential NULL dereference (bsc#1224942).
• CVE-2022-48710: Fixed a possible null pointer dereference (bsc#1225230).
• CVE-2023-1829: Fixed a use-after-free vulnerability in the control index filter (tcindex) (bsc#1210335).
• CVE-2023-42755: Check user supplied offsets (bsc#1215702).
• CVE-2023-52586: Fixed mutex lock in control vblank irq (bsc#1221081).
• CVE-2023-52655: Check packet for fixup for true limit (bsc#1217169).
• CVE-2023-52664: Eliminate double free in error handling logic (bsc#1224747).
• CVE-2023-52691: Fixed a double-free in si_dpm_init (bsc#1224607).
• CVE-2023-52698: Fixed memory leak in netlbl_calipso_add_pass() (bsc#1224621)
• CVE-2023-52730: Fixed possible resource leaks in some error paths (bsc#1224956).
• CVE-2023-52732: Blocklist the kclient when…

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:

• ARM SCMI message protocol;
• InfiniBand drivers;
• TTY drivers;
• TLS protocol; (CVE-2024-26584, CVE-2024-36016, CVE-2024-26585, CVE-2021-47131, CVE-2024-26907, CVE-2022-48655, CVE-2024-26583)

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:

• ARM SCMI message protocol;
• InfiniBand drivers;
• TTY drivers;
• TLS protocol; (CVE-2022-48655, CVE-2024-36016, CVE-2024-26584, CVE-2021-47131, CVE-2024-26907, CVE-2024-26585, CVE-2024-26583)

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:

• ARM64 architecture;
• M68K architecture;
• User-Mode Linux (UML);
• x86 architecture;
• Accessibility subsystem;
• Character device driver;
• Clock framework and drivers;
• CPU frequency scaling framework;
• Hardware crypto device drivers;
• Buffer Sharing and Synchronization framework;
• FireWire subsystem;
• ARM SCMI message protocol;
• GPU drivers;
• HW tracing;
• InfiniBand drivers;
• Macintosh device drivers;
• Multiple devices driver;
• Media drivers;
• Network drivers;
• Pin controllers subsystem;
• S/390 drivers;
• SCSI drivers;
• SoundWire subsystem;
• Greybus lights staging drivers;
• TTY drivers;
• Framebuffer layer;
• Virtio drivers;
• 9P distributed file system;
• eCrypt file system;
• EROFS file system;
• Ext4 file system;
• F2FS file system;
• JFFS2 file system;
• Network file system client;
• NILFS2 file system;
• SMB network file system;
• Mellanox drivers;
• Kernel debugger infrastructure;
• IRQ subsystem;
• Tracing infrastructure;
• Dynamic debug library;
• 9P file system network protocol;
• Bluetooth subsystem;
• Networking core;
• IPv4 networking;
• IPv6 networking;
• Netfilter;
• NET/ROM layer;
• NFC subsystem;
• NSH protocol;
• Open vSwitch;
• Phonet protocol;
• TIPC protocol;
• TLS protocol;
• Unix domain sockets;
• Wireless networking;
• eXpress Data Path;
• XFRM subsystem;
• ALSA framework; (CVE-2024-26584, CVE-2023-52434, CVE-2024-36933, CVE-2024-36286, CVE-2024-36886, CVE-2024-38579, CVE-2022-48772, CVE-2024-39493, CVE-2024-38637, CVE-2024-36016, CVE-2023-52752, CVE-2024-38558, CVE-2024-39488, CVE-2024-38559, CVE-2024-36919, CVE-2024-36905, CVE-2024-39489, CVE-2024-39475, CVE-2021-47131, CVE-2024-26585, CVE-2024-38578, CVE-2024-38567, CVE-2024-38596, CVE-2024-38598, CVE-2024-36940, CVE-2024-38552, CVE-2024-37356, CVE-2024-38780, CVE-2024-38589, CVE-2024-36959, CVE-2024-27399, CVE-2024-36017, CVE-2024-38661, CVE-2024-36939, CVE-2024-36904, CVE-2024-36902, CVE-2024-38381, CVE-2024-36883, CVE-2024-37353, CVE-2024-38560, CVE-2024-39292, CVE-2024-36934, CVE-2024-38621, CVE-2024-38599, CVE-2024-36941, CVE-2022-48655, CVE-2024-26886, CVE-2024-36014, CVE-2024-38613, CVE-2024-27398, CVE-2024-27019, CVE-2024-36954, CVE-2024-39471, CVE-2024-26583, CVE-2024-35947, CVE-2024-31076, CVE-2024-38659, CVE-2024-38549, CVE-2024-38618, CVE-2024-38565, CVE-2024-27401, CVE-2022-48674, CVE-2024-38582, CVE-2024-38634, CVE-2024-38627, CVE-2024-39480, CVE-2024-36015, CVE-2023-52585, CVE-2024-36270, CVE-2024-26907, CVE-2024-38615, CVE-2024-38600, CVE-2024-38612, CVE-2024-36946, CVE-2024-39301, CVE-2024-38601, CVE-2024-38635, CVE-2024-33621, CVE-2024-36964, CVE-2024-38633, CVE-2024-39467, CVE-2024-38607, CVE-2024-36971, CVE-2024-35976, CVE-2024-38587, CVE-2023-52882, CVE-2024-36950, CVE-2024-39276, CVE-2024-36960, CVE-2024-38583)

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:

• ARM64 architecture;
• M68K architecture;
• User-Mode Linux (UML);
• x86 architecture;
• Accessibility subsystem;
• Character device driver;
• Clock framework and drivers;
• CPU frequency scaling framework;
• Hardware crypto device drivers;
• Buffer Sharing and Synchronization framework;
• FireWire subsystem;
• ARM SCMI message protocol;
• GPU drivers;
• HW tracing;
• InfiniBand drivers;
• Macintosh device drivers;
• Multiple devices driver;
• Media drivers;
• Network drivers;
• Pin controllers subsystem;
• S/390 drivers;
• SCSI drivers;
• SoundWire subsystem;
• Greybus lights staging drivers;
• TTY drivers;
• Framebuffer layer;
• Virtio drivers;
• 9P distributed file system;
• eCrypt file system;
• EROFS file system;
• Ext4 file system;
• F2FS file system;
• JFFS2 file system;
• Network file system client;
• NILFS2 file system;
• SMB network file system;
• Mellanox drivers;
• Kernel debugger infrastructure;
• IRQ subsystem;
• Tracing infrastructure;
• Dynamic debug library;
• 9P file system network protocol;
• Bluetooth subsystem;
• Networking core;
• IPv4 networking;
• IPv6 networking;
• Netfilter;
• NET/ROM layer;
• NFC subsystem;
• NSH protocol;
• Open vSwitch;
• Phonet protocol;
• TIPC protocol;
• TLS protocol;
• Unix domain sockets;
• Wireless networking;
• eXpress Data Path;
• XFRM subsystem;
• ALSA framework; (CVE-2022-48674, CVE-2024-36016, CVE-2024-36934, CVE-2024-39471, CVE-2024-38381, CVE-2024-26584, CVE-2024-38635, CVE-2024-36902, CVE-2022-48772, CVE-2024-38600, CVE-2024-39475, CVE-2024-26886, CVE-2024-39301, CVE-2024-36919, CVE-2024-35947, CVE-2024-38559, CVE-2024-38637, CVE-2024-36014, CVE-2024-36960, CVE-2024-35976, CVE-2024-27399, CVE-2024-38607, CVE-2024-38558, CVE-2024-38578, CVE-2024-36015, CVE-2024-39488, CVE-2024-38780, CVE-2024-36940, CVE-2024-38621, CVE-2024-38659, CVE-2024-26585, CVE-2024-27019, CVE-2024-38615, CVE-2024-38661, CVE-2024-37353, CVE-2024-38549, CVE-2024-38579, CVE-2024-27401, CVE-2024-38589, CVE-2024-38565, CVE-2022-48655, CVE-2024-38567, CVE-2024-38587, CVE-2024-37356, CVE-2024-36959, CVE-2024-39493, CVE-2024-38627, CVE-2024-36939, CVE-2024-31076, CVE-2024-36971, CVE-2024-38560, CVE-2024-39467, CVE-2024-36286, CVE-2024-39480, CVE-2024-26907, CVE-2024-36017, CVE-2024-38634, CVE-2023-52585, CVE-2024-38582, CVE-2023-52752, CVE-2024-38583, CVE-2024-38618, CVE-2024-36946, CVE-2024-39292, CVE-2024-36950, CVE-2024-36886, CVE-2024-39489, CVE-2024-36933, CVE-2024-27398, CVE-2023-52434, CVE-2024-36905, CVE-2024-38596, CVE-2021-47131, CVE-2024-38601, CVE-2024-38552, CVE-2024-26583, CVE-2024-38633, CVE-2024-36964, CVE-2024-39276, CVE-2024-36270, CVE-2024-38613, CVE-2024-36904, CVE-2024-38598, CVE-2024-38612, CVE-2024-36941, CVE-2024-36954, CVE-2024-38599, CVE-2024-36883, CVE-2023-52882, CVE-2024-33621)