CVE-2023-53070

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

Security Fix(es):

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.

Additional Changes:

For detailed information on changes in this release, see the Rocky Linux SIG Cloud 8.10 Release Notes linked from the References section.

In the Linux kernel, the following vulnerability has been resolved: ACPI: PPTT: Fix to avoid sleep in the atomic context when PPTT is absent Commit 0c80f9e165f8 ("ACPI: PPTT: Leave the table mapped for the runtime usage") enabled to map PPTT once on the first invocation of acpi_get_pptt() and never unmapped the same allowing it to be used at runtime with out the hassle of mapping and unmapping the table. This was needed to fetch LLC information from the PPTT in the cpuhotplug path which is executed in the atomic context as the acpi_get_table() might sleep waiting for a mutex. However it missed to handle the case when there is no PPTT on the system which results in acpi_get_pptt() being called from all the secondary CPUs attempting to fetch the LLC information in the atomic context without knowing the absence of PPTT resulting in the splat like below: | BUG: sleeping function called from invalid context at kernel/locking/semaphore.c:164 | in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 0, name: swapper/1 | preempt_count: 1, expected: 0 | RCU nest depth: 0, expected: 0 | no locks held by swapper/1/0. | irq event stamp: 0 | hardirqs last enabled at (0): 0x0 | hardirqs last disabled at (0): copy_process+0x61c/0x1b40 | softirqs last enabled at (0): copy_process+0x61c/0x1b40 | softirqs last disabled at (0): 0x0 | CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.3.0-rc1 #1 | Call trace: | dump_backtrace+0xac/0x138 | show_stack+0x30/0x48 | dump_stack_lvl+0x60/0xb0 | dump_stack+0x18/0x28 | __might_resched+0x160/0x270 | __might_sleep+0x58/0xb0 | down_timeout+0x34/0x98 | acpi_os_wait_semaphore+0x7c/0xc0 | acpi_ut_acquire_mutex+0x58/0x108 | acpi_get_table+0x40/0xe8 | acpi_get_pptt+0x48/0xa0 | acpi_get_cache_info+0x38/0x140 | init_cache_level+0xf4/0x118 | detect_cache_attributes+0x2e4/0x640 | update_siblings_masks+0x3c/0x330 | store_cpu_topology+0x88/0xf0 | secondary_start_kernel+0xd0/0x168 | __secondary_switched+0xb8/0xc0 Update acpi_get_pptt() to consider the fact that PPTT is once checked and is not available on the system and return NULL avoiding any attempts to fetch PPTT and thereby avoiding any possible sleep waiting for a mutex in the atomic context.

• KVM: x86: Fix shadow paging use-after-free due to unexpected role {CVE-2026-46113}
• KVM: x86: Fix shadow paging use-after-free due to unexpected GFN {CVE-2026-46113}
• Bluetooth: bcsp: receive data only if registered {CVE-2025-40308}
• xen/privcmd: unregister xenstore notifier on module exit {CVE-2026-31788}
• xen/privcmd: restrict usage in unprivileged domU {CVE-2026-31788}
• USB: usbtmc: Use usb_bulk_msg_killable() with user-specified timeouts {CVE-2026-43429}
• net: usb: rtl8150: enable basic endpoint checking {CVE-2025-21708}
• net: usb: kaweth: validate USB endpoints {CVE-2026-23312}
• net: usb: kalmia: validate USB endpoints {CVE-2026-23365}
• net: usb: pegasus: validate USB endpoints {CVE-2026-23290}
• net: usb: pegasus: enable basic endpoint checking {CVE-2026-43156}
• USB: usbcore: Introduce usb_bulk_msg_killable() {CVE-2026-43429}
• USB: core: Add routines for endpoint checks in old drivers {CVE-2026-43156}
• nf_tables: nft_dynset: fix possible stateful expression memleak in error path {CVE-2026-23399}
• tpm: Cap the number of PCR banks {CVE-2025-71077}
• clk: imx: clk-imx8mp: improve error handling in imx8mp_clocks_probe() {CVE-2023-53704}
• dm: fix a race condition in retrieve_deps {CVE-2023-54324}
• ice: fix Tx scheduler error handling in XDP callback {CVE-2025-38127}
• mlx5: fix skb leak while fifo resync and push {CVE-2023-54238}
• mmc: vub300: fix return value check of mmc_add_host() {CVE-2022-50251}
• bonding: annotate data-races around slave->last_rx {CVE-2026-23212}
• RDMA/irdma: Fix data race on CQP completion stats {CVE-2023-54302}
• bpf: cpumap: Fix memory leak in cpu_map_update_elem {CVE-2023-53441}
• fbdev: Fix do_register_framebuffer to prevent null-ptr-deref in fb_videomode_to_var {CVE-2025-38215}
• trace/fgraph: Fix the warning caused by missing unregister notifier {CVE-2025-39829}
• vxlan: Fix NPD in {arp,neigh}_reduce() when using nexthop objects {CVE-2025-39850}
• team: prevent adding a device which is already a team device lower {CVE-2024-58071}
• net: stmmac: move the EST lock to struct stmmac_priv {CVE-2024-38594}
• drm/amd/display: Disable PSR-SU on Parade 08-01 TCON too {CVE-2024-50108}
• rxrpc: Fix handling of received connection abort {CVE-2024-58053}
• bnxt_en: Fix out-of-bound memcpy() during ethtool -w {CVE-2025-37911}
• scsi: storvsc: Ratelimit warning logs to prevent VM denial of service {CVE-2025-21690}
• net: atlantic: Fix DMA mapping for PTP hwts ring {CVE-2024-26680}
• wifi: mac80211: use two-phase skb reclamation in ieee80211_do_stop() {CVE-2024-47713}
• drm/amd/display: Add null check for 'afb' in amdgpu_dm_plane_handle_cursor_update (v2) {CVE-2024-49905}
• dm: fix NULL pointer dereference in __dm_suspend() {CVE-2025-40134}
• smb: client: validate the whole DACL before rewriting it in cifsacl {CVE-2026-31709}
• PM: runtime: Fix a race condition related to device removal {CVE-2026-23452}
• ALSA: usb-audio: Check endpoint numbers at parsing Scarlett2 mixer interfaces {CVE-2026-43436}
• nvme-pci: Fix race bug in nvme_poll_irqdisable() {CVE-2026-43448}
• sctp: add mutual exclusion in proc_sctp_do_udp_port() {CVE-2025-22062}
• cachefiles: fix dentry leak in cachefiles_open_file() {CVE-2024-49870}
• mm: revert "mm: shmem: fix data-race in shmem_getattr()" {CVE-2024-53136}
• memcg: fix soft lockup in the OOM process {CVE-2024-57977}
• resource: fix region_intersects() vs add_memory_driver_managed() {CVE-2024-49878}
• r8169: add tally counter fields added with RTL8125 {CVE-2024-49973}
• svcrdma: fix miss destroy percpu_counter in svc_rdma_proc_init() {CVE-2024-53215}
• ext4: fix iloc.bh leak in ext4_fc_replay_inode() error paths {CVE-2026-43066}
• wifi: rtw88: Use devm_kmemdup() in rtw_set_supported_band() {CVE-2025-71273}
• net: netlink: af_netlink: Prevent empty skb by adding a check on len. {CVE-2021-47606}
• extcon: Modify extcon device to be created after driver data is set {CVE-2022-49308}
• tick/nohz: unexport __init-annotated tick_nohz_full_setup() {CVE-2022-49675}
• bridge:…

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

ACPI: PPTT: Fix to avoid sleep in the atomic context when PPTT is absent

Commit 0c80f9e165f8 ("ACPI: PPTT: Leave the table mapped for the runtime usage") enabled to map PPTT once on the first invocation of acpi_get_pptt() and never unmapped the same allowing it to be used at runtime with out the hassle of mapping and unmapping the table. This was needed to fetch LLC information from the PPTT in the cpuhotplug path which is executed in the atomic context as the acpi_get_table() might sleep waiting for a mutex.

However it missed to handle the case when there is no PPTT on the system which results in acpi_get_pptt() being called from all the secondary CPUs attempting to fetch the LLC information in the atomic context without knowing the absence of PPTT resulting in the splat like below:

| BUG: sleeping function called from invalid context at kernel/locking/semaphore.c:164 | in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 0, name: swapper/1 | preempt_count: 1, expected: 0 | RCU nest depth: 0, expected: 0 | no locks held by swapper/1/0. | irq event stamp: 0 | hardirqs last enabled at (0): 0x0 | hardirqs last disabled at (0): copy_process+0x61c/0x1b40 | softirqs last enabled at (0): copy_process+0x61c/0x1b40 | softirqs last disabled at (0): 0x0 | CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.3.0-rc1 #1 | Call trace: | dump_backtrace+0xac/0x138 | show_stack+0x30/0x48 | dump_stack_lvl+0x60/0xb0 | dump_stack+0x18/0x28 | __might_resched+0x160/0x270 | __might_sleep+0x58/0xb0 | down_timeout+0x34/0x98 | acpi_os_wait_semaphore+0x7c/0xc0 | acpi_ut_acquire_mutex+0x58/0x108 | acpi_get_table+0x40/0xe8 | acpi_get_pptt+0x48/0xa0 | acpi_get_cache_info+0x38/0x140 | init_cache_level+0xf4/0x118 | detect_cache_attributes+0x2e4/0x640 | update_siblings_masks+0x3c/0x330 | store_cpu_topology+0x88/0xf0 | secondary_start_kernel+0xd0/0x168 | __secondary_switched+0xb8/0xc0

Update acpi_get_pptt() to consider the fact that PPTT is once checked and is not available on the system and return NULL avoiding any attempts to fetch PPTT and thereby avoiding any possible sleep waiting for a mutex in the atomic context.

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

The following security bugs were fixed:

• CVE-2022-49775: tcp: cdg: allow tcp_cdg_release() to be called multiple times (bsc#1242245).
• CVE-2024-53168: net: make sock_inuse_add() available (bsc#1234887).
• CVE-2024-56558: nfsd: make sure exp active before svc_export_show (bsc#1235100).
• CVE-2025-21999: proc: fix UAF in proc_get_inode() (bsc#1240802).
• CVE-2025-22056: netfilter: nft_tunnel: fix geneve_opt type confusion addition (bsc#1241525).
• CVE-2025-23145: mptcp: fix NULL pointer in can_accept_new_subflow (bsc#1242596).
• CVE-2025-37789: net: openvswitch: fix nested key length validation in the set() action (bsc#1242762).

The following non-security bugs were fixed:

• Drivers: hv: Allow vmbus_sendpacket_mpb_desc() to create multiple ranges (bsc#1243737).
• Remove debug flavor (bsc#1243919).
• arm64: bpf: Add BHB mitigation to the epilogue for cBPF programs (bsc#1242778).
• arm64: bpf: Only mitigate cBPF programs loaded by unprivileged users (bsc#1242778).
• arm64: insn: Add support for encoding DSB (bsc#1242778).
• arm64: proton-pack: Add new CPUs 'k' values for branch mitigation (bsc#1242778).
• arm64: proton-pack: Expose whether the branchy loop k value (bsc#1242778).
• arm64: proton-pack: Expose whether the platform is mitigated by firmware (bsc#1242778).
• hv_netvsc: Preserve contiguous PFN grouping in the page buffer array (bsc#1243737).
• hv_netvsc: Remove rmsg_pgcnt (bsc#1243737).
• hv_netvsc: Use vmbus_sendpacket_mpb_desc() to send VMBus messages (bsc#1243737).
• mtd: phram: Add the kernel lock down check (bsc#1232649).
• net :mana :Add remaining GDMA stats for MANA to ethtool (bsc#1234395).
• net :mana :Request a V2 response version for MANA_QUERY_GF_STAT (bsc#1234395).
• net: mana: Add gdma stats to ethtool output for mana (bsc#1234395).
• nvme-pci: acquire cq_poll_lock in nvme_poll_irqdisable (bsc#1223096).
• ocfs2: fix the issue with discontiguous allocation in the global_bitmap (git-fixes).
• powerpc/pseries/iommu: IOMMU incorrectly marks MMIO range in DDW (bsc#1218470 ltc#204531).
• scsi: core: Fix unremoved procfs host directory regression (git-fixes).
• tcp: Dump bound-only sockets in inet_diag (bsc#1204562).
• tpm, tpm_tis: Workaround failed command reception on Infineon devices (bsc#1235870).
• tpm: tis: Double the timeout B to 4s (bsc#1235870).
• x86/bhi: Do not set BHI_DIS_S in 32-bit mode (bsc#1242778).
• x86/bpf: Add IBHF call at end of classic BPF (bsc#1242778).
• x86/bpf: Call branch history clearing sequence on exit (bsc#1242778).

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

The following security bugs were fixed:

• CVE-2022-49775: tcp: cdg: allow tcp_cdg_release() to be called multiple times (bsc#1242245).
• CVE-2024-53168: net: make sock_inuse_add() available (bsc#1234887).
• CVE-2024-56558: nfsd: make sure exp active before svc_export_show (bsc#1235100).
• CVE-2025-21999: proc: fix UAF in proc_get_inode() (bsc#1240802).
• CVE-2025-22056: netfilter: nft_tunnel: fix geneve_opt type confusion addition (bsc#1241525).
• CVE-2025-23145: mptcp: fix NULL pointer in can_accept_new_subflow (bsc#1242596).
• CVE-2025-37789: net: openvswitch: fix nested key length validation in the set() action (bsc#1242762).
• CVE-2024-28956: x86/its: Add support for ITS-safe indirect thunk (bsc#1242006).
• CVE-2025-37785: ext4: fix OOB read when checking dotdot dir (bsc#1241640).

The following non-security bugs were fixed:

• Drivers: hv: Allow vmbus_sendpacket_mpb_desc() to create multiple ranges (bsc#1243737).
• Move upstreamed sched/membarrier patch into sorted section
• Remove debug flavor (bsc#1243919). This is only released in Leap, and we do not have Leap 15.4 anymore.
• Remove debug flavor (bsc#1243919). This is only released in Leap, and we do not have Leap 15.5 anymore.
• Use gcc-13 for build on SLE16 (jsc#PED-10028).
• arm64: bpf: Add BHB mitigation to the epilogue for cBPF programs (bsc#1242778).
• arm64: bpf: Only mitigate cBPF programs loaded by unprivileged users (bsc#1242778).
• arm64: insn: Add support for encoding DSB (bsc#1242778).
• arm64: proton-pack: Add new CPUs 'k' values for branch mitigation (bsc#1242778).
• arm64: proton-pack: Expose whether the branchy loop k value (bsc#1242778).
• arm64: proton-pack: Expose whether the platform is mitigated by firmware (bsc#1242778).
• hv_netvsc: Preserve contiguous PFN grouping in the page buffer array (bsc#1243737).
• hv_netvsc: Remove rmsg_pgcnt (bsc#1243737).
• hv_netvsc: Use vmbus_sendpacket_mpb_desc() to send VMBus messages (bsc#1243737).
• mtd: phram: Add the kernel lock down check (bsc#1232649).
• net :mana :Add remaining GDMA stats for MANA to ethtool (bsc#1234395).
• net :mana :Request a V2 response version for MANA_QUERY_GF_STAT (bsc#1234395).
• net: mana: Add gdma stats to ethtool output for mana (bsc#1234395).
• nvme-pci: acquire cq_poll_lock in nvme_poll_irqdisable (bsc#1223096).
• ocfs2: fix the issue with discontiguous allocation in the global_bitmap (git-fixes).
• powerpc/pseries/iommu: IOMMU incorrectly marks MMIO range in DDW (bsc#1218470 ltc#204531).
• rpm/kernel-binary.spec.in: Also order against update-bootloader (boo#1228659, boo#1240785, boo#1241038).
• rpm/kernel-binary.spec.in: Fix missing 20-kernel-default-extra.conf (bsc#1239986)
• rpm/kernel-binary.spec.in: fix KMPs build on 6.13+ (bsc#1234454)
• rpm/kernel-docs.spec.in: Workaround for reproducible builds (bsc#1238303)
• rpm/release-projects: Update the ALP projects again (bsc#1231293).
• rpm/split-modules: Fix optional splitting with usrmerge (bsc#1238570)
• scsi: core: Fix unremoved procfs host directory regression (git-fixes).
• tcp: Dump bound-only sockets in inet_diag (bsc#1204562).
• tpm, tpm_tis: Workaround failed command reception on Infineon devices (bsc#1235870).
• tpm: tis: Double the timeout B to 4s (bsc#1235870).
• x86/bhi: Do not set BHI_DIS_S in 32-bit mode (bsc#1242778).
• x86/bpf: Add IBHF call at end of classic BPF (bsc#1242778).
• x86/bpf: Call branch history clearing sequence on exit (bsc#1242778).

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

The following security bugs were fixed:

• CVE-2022-49775: tcp: cdg: allow tcp_cdg_release() to be called multiple times (bsc#1242245).
• CVE-2024-53168: net: make sock_inuse_add() available (bsc#1234887).
• CVE-2024-56558: nfsd: make sure exp active before svc_export_show (bsc#1235100).
• CVE-2025-21999: proc: fix UAF in proc_get_inode() (bsc#1240802).
• CVE-2025-22056: netfilter: nft_tunnel: fix geneve_opt type confusion addition (bsc#1241525).
• CVE-2025-23145: mptcp: fix NULL pointer in can_accept_new_subflow (bsc#1242596).
• CVE-2025-37789: net: openvswitch: fix nested key length validation in the set() action (bsc#1242762).
• CVE-2024-28956: x86/its: Add support for ITS-safe indirect thunk (bsc#1242006).
• CVE-2025-37785: ext4: fix OOB read when checking dotdot dir (bsc#1241640).

The following non-security bugs were fixed:

• Drivers: hv: Allow vmbus_sendpacket_mpb_desc() to create multiple ranges (bsc#1243737).
• Move upstreamed sched/membarrier patch into sorted section
• Remove debug flavor (bsc#1243919). This is only released in Leap, and we do not have Leap 15.4 anymore.
• Remove debug flavor (bsc#1243919). This is only released in Leap, and we do not have Leap 15.5 anymore.
• Use gcc-13 for build on SLE16 (jsc#PED-10028).
• arm64: bpf: Add BHB mitigation to the epilogue for cBPF programs (bsc#1242778).
• arm64: bpf: Only mitigate cBPF programs loaded by unprivileged users (bsc#1242778).
• arm64: insn: Add support for encoding DSB (bsc#1242778).
• arm64: proton-pack: Add new CPUs 'k' values for branch mitigation (bsc#1242778).
• arm64: proton-pack: Expose whether the branchy loop k value (bsc#1242778).
• arm64: proton-pack: Expose whether the platform is mitigated by firmware (bsc#1242778).
• hv_netvsc: Preserve contiguous PFN grouping in the page buffer array (bsc#1243737).
• hv_netvsc: Remove rmsg_pgcnt (bsc#1243737).
• hv_netvsc: Use vmbus_sendpacket_mpb_desc() to send VMBus messages (bsc#1243737).
• mtd: phram: Add the kernel lock down check (bsc#1232649).
• net :mana :Add remaining GDMA stats for MANA to ethtool (bsc#1234395).
• net :mana :Request a V2 response version for MANA_QUERY_GF_STAT (bsc#1234395).
• net: mana: Add gdma stats to ethtool output for mana (bsc#1234395).
• nvme-pci: acquire cq_poll_lock in nvme_poll_irqdisable (bsc#1223096).
• ocfs2: fix the issue with discontiguous allocation in the global_bitmap (git-fixes).
• powerpc/pseries/iommu: IOMMU incorrectly marks MMIO range in DDW (bsc#1218470 ltc#204531).
• rpm/kernel-binary.spec.in: Also order against update-bootloader (boo#1228659, boo#1240785, boo#1241038).
• rpm/kernel-binary.spec.in: Fix missing 20-kernel-default-extra.conf (bsc#1239986)
• rpm/kernel-binary.spec.in: fix KMPs build on 6.13+ (bsc#1234454)
• rpm/kernel-docs.spec.in: Workaround for reproducible builds (bsc#1238303)
• rpm/release-projects: Update the ALP projects again (bsc#1231293).
• rpm/split-modules: Fix optional splitting with usrmerge (bsc#1238570)
• scsi: core: Fix unremoved procfs host directory regression (git-fixes).
• tcp: Dump bound-only sockets in inet_diag (bsc#1204562).
• tpm, tpm_tis: Workaround failed command reception on Infineon devices (bsc#1235870).
• tpm: tis: Double the timeout B to 4s (bsc#1235870).
• x86/bhi: Do not set BHI_DIS_S in 32-bit mode (bsc#1242778).
• x86/bpf: Add IBHF call at end of classic BPF (bsc#1242778).
• x86/bpf: Call branch history clearing sequence on exit (bsc#1242778).