[El-errata] ELSA-2026-57252 Important: Oracle Linux 9 kernel security, bug fix, and enhancement update

Fri Aug 21 15:01:25 UTC 2026

Oracle Linux Security Advisory ELSA-2026-57252

http://linux.oracle.com/errata/ELSA-2026-57252.html

The following updated rpms for Oracle Linux 9 have been uploaded to the Unbreakable Linux Network:

x86_64:
kernel-5.14.0-687.41.1.el9_8.x86_64.rpm
kernel-abi-stablelists-5.14.0-687.41.1.el9_8.noarch.rpm
kernel-core-5.14.0-687.41.1.el9_8.x86_64.rpm
kernel-cross-headers-5.14.0-687.41.1.el9_8.x86_64.rpm
kernel-debug-5.14.0-687.41.1.el9_8.x86_64.rpm
kernel-debug-core-5.14.0-687.41.1.el9_8.x86_64.rpm
kernel-debug-devel-5.14.0-687.41.1.el9_8.x86_64.rpm
kernel-debug-devel-matched-5.14.0-687.41.1.el9_8.x86_64.rpm
kernel-debug-modules-5.14.0-687.41.1.el9_8.x86_64.rpm
kernel-debug-modules-core-5.14.0-687.41.1.el9_8.x86_64.rpm
kernel-debug-modules-extra-5.14.0-687.41.1.el9_8.x86_64.rpm
kernel-debug-uki-virt-5.14.0-687.41.1.el9_8.x86_64.rpm
kernel-devel-5.14.0-687.41.1.el9_8.x86_64.rpm
kernel-devel-matched-5.14.0-687.41.1.el9_8.x86_64.rpm
kernel-doc-5.14.0-687.41.1.el9_8.noarch.rpm
kernel-headers-5.14.0-687.41.1.el9_8.x86_64.rpm
kernel-modules-5.14.0-687.41.1.el9_8.x86_64.rpm
kernel-modules-core-5.14.0-687.41.1.el9_8.x86_64.rpm
kernel-modules-extra-5.14.0-687.41.1.el9_8.x86_64.rpm
kernel-tools-5.14.0-687.41.1.el9_8.x86_64.rpm
kernel-tools-libs-5.14.0-687.41.1.el9_8.x86_64.rpm
kernel-tools-libs-devel-5.14.0-687.41.1.el9_8.x86_64.rpm
kernel-uki-virt-5.14.0-687.41.1.el9_8.x86_64.rpm
kernel-uki-virt-addons-5.14.0-687.41.1.el9_8.x86_64.rpm
libperf-5.14.0-687.41.1.el9_8.x86_64.rpm
perf-5.14.0-687.41.1.el9_8.x86_64.rpm
python3-perf-5.14.0-687.41.1.el9_8.x86_64.rpm
rtla-5.14.0-687.41.1.el9_8.x86_64.rpm
rv-5.14.0-687.41.1.el9_8.x86_64.rpm

aarch64:
kernel-cross-headers-5.14.0-687.41.1.el9_8.aarch64.rpm
kernel-headers-5.14.0-687.41.1.el9_8.aarch64.rpm
kernel-tools-5.14.0-687.41.1.el9_8.aarch64.rpm
kernel-tools-libs-5.14.0-687.41.1.el9_8.aarch64.rpm
kernel-tools-libs-devel-5.14.0-687.41.1.el9_8.aarch64.rpm
libperf-5.14.0-687.41.1.el9_8.aarch64.rpm
perf-5.14.0-687.41.1.el9_8.aarch64.rpm
python3-perf-5.14.0-687.41.1.el9_8.aarch64.rpm
rtla-5.14.0-687.41.1.el9_8.aarch64.rpm
rv-5.14.0-687.41.1.el9_8.aarch64.rpm

SRPMS:
http://oss.oracle.com/ol9/SRPMS-updates/kernel-5.14.0-687.41.1.el9_8.src.rpm

Related CVEs:

CVE-2026-43206
CVE-2026-43233
CVE-2026-43237
CVE-2026-45878
CVE-2026-45991
CVE-2026-46120
CVE-2026-52991
CVE-2026-53136
CVE-2026-53143
CVE-2026-53189
CVE-2026-53329
CVE-2026-53356
CVE-2026-53374
CVE-2026-63879
CVE-2026-63884
CVE-2026-63888
CVE-2026-63952
CVE-2026-64007
CVE-2026-64048
CVE-2026-64219
CVE-2026-64379
CVE-2026-64382
CVE-2026-64386
CVE-2026-64560
CVE-2026-68343
CVE-2026-68388

Description of changes:

[5.14.0-687.41.1]
- Disable UKI signing [Orabug: 36571828]
- Update Oracle Linux certificates (Kevin Lyons)
- Disable signing for aarch64 (Ilya Okomin)
- Oracle Linux RHCK Module Signing Key was added to the kernel trusted keys list (olkmod_signing_key.pem) [Orabug: 29539237]
- Update x509.genkey [Orabug: 24817676]
- Conflict with shim-ia32 and shim-x64 <= 15.3-1.0.5]
- Remove upstream reference during boot (Kevin Lyons) [Orabug: 34729535]
- Add Oracle Linux IMA certificates
- Add new Oracle Linux Driver Signing (key 1) certificate [Orabug: 37985764]

[5.14.0-687.41.1]
- smb: client: validate DFS referral PathConsumed (CKI Backport Bot) [RHEL-237668] {CVE-2026-68343}
- posix-cpu-timers: Prevent UAF caused by non-leader exec() race (Waiman Long) [RHEL-227844] {CVE-2026-64560}
- posix-cpu-timers: Fix pid refcount leak in do_cpu_nanosleep() error path (Waiman Long) [RHEL-227844] {CVE-2026-64370}
- posix-timers: Retrieve interval in common timer_settime() code (Waiman Long) [RHEL-227844]
- posix-cpu-timers: Simplify posix_cpu_timer_set() (Waiman Long) [RHEL-227844]
- posix-cpu-timers: Remove incorrect comment in posix_cpu_timer_set() (Waiman Long) [RHEL-227844]
- posix-cpu-timers: Use @now instead of @val for clarity (Waiman Long) [RHEL-227844]
- posix-cpu-timers: Do not arm SIGEV_NONE timers (Waiman Long) [RHEL-227844]
- posix-cpu-timers: Replace old expiry retrieval in posix_cpu_timer_set() (Waiman Long) [RHEL-227844]
- posix-cpu-timers: Handle SIGEV_NONE timers correctly in timer_set() (Waiman Long) [RHEL-227844]
- posix-cpu-timers: Handle SIGEV_NONE timers correctly in timer_get() (Waiman Long) [RHEL-227844]
- posix-cpu-timers: Handle interval timers correctly in timer_get() (Waiman Long) [RHEL-227844]
- posix-cpu-timers: Save interval only for armed timers (Waiman Long) [RHEL-227844]
- posix-cpu-timers: Split up posix_cpu_timer_get() (Waiman Long) [RHEL-227844]
- smb/client: handle overlapping allocated ranges in fallocate (CKI Backport Bot) [RHEL-236207] {CVE-2026-68388}
- smb: client: mask server-provided mode to 07777 in modefromsid (CKI Backport Bot) [RHEL-234528] {CVE-2026-64379}
- cgroup/psi: Set of->priv to NULL upon file release (Waiman Long) [RHEL-232554]
- sched/psi: Create the psimon kthread outside of cgroup_mutex (Waiman Long) [RHEL-232554]
- sched/psi: fix race between file release and pressure write (Waiman Long) [RHEL-232554] {CVE-2026-52991}
- smb: client: fix query_info() replay double-free (CKI Backport Bot) [RHEL-234121] {CVE-2026-64386}
- smb: client: fix double-free in SMB2_open() replay (CKI Backport Bot) [RHEL-234107] {CVE-2026-64382}
- mm/huge_memory: update file PMD counter before folio_put() (Luiz Capitulino) [RHEL-231225] {CVE-2026-53189}
- net/smc: reject CHID-0 ACCEPT that matches an empty ism_dev slot (CKI Backport Bot) [RHEL-230090] {CVE-2026-64048}
- ip6_gre: Use cached t->net in ip6erspan_changelink(). (CKI Backport Bot) [RHEL-180144] {CVE-2026-46120}

[5.14.0-687.40.1]
- scsi: target: iscsi: Fix CRC overread and double-free in iscsit_handle_text_cmd() (Maurizio Lombardi) [RHEL-213222] {CVE-2026-63888}
- smb: client: fix SMB1 TRANS2 multi-response truncation in SendReceive() (Paulo Alcantara) [RHEL-235811]
- drm/amdgpu: fix amdgpu_hmm_range_get_pages (José Expósito) [RHEL-222614] {CVE-2026-63879}
- drm/amd/display: Use krealloc_array() in dal_vector_reserve() (CKI Backport Bot) [RHEL-222668] {CVE-2026-53329}
- drm/amd/display: Clamp VBIOS HDMI retimer register count to array size (CKI Backport Bot) [RHEL-222683] {CVE-2026-53136}
- drm/amdkfd: Fix buffer overflow in SDMA queue checkpoint/restore on GFX11 (CKI Backport Bot) [RHEL-222703] {CVE-2026-53143}
- drm/amdkfd: Fix watch_id bounds checking in debug address watch v2 (CKI Backport Bot) [RHEL-222718] {CVE-2026-45878}
- drm/i915: Fix potential UAF in TTM object purge (CKI Backport Bot) [RHEL-222742] {CVE-2026-63884}
- drm/i915/gem: Fix phys BO pread/pwrite with offset (CKI Backport Bot) [RHEL-222748] {CVE-2026-53356}
- drm/amd/display: Validate payload length and link_index in dc_process_dmub_aux_transfer_async (CKI Backport Bot) [RHEL-222571] {CVE-2026-64219}
- drm/amdgpu: zero-initialize GART table on allocation (CKI Backport Bot) [RHEL-222647] {CVE-2026-53374}
- drm/amdkfd: Fix out-of-bounds write in kfd_event_page_set() (CKI Backport Bot) [RHEL-221333] {CVE-2026-43206}
- drm/amdgpu: Refactor amdgpu_gem_va_ioctl for Handling Last Fence Update and Timeline Management v7 (CKI Backport Bot) [RHEL-221368] {CVE-2026-43237}
- drm/amdgpu: Refactor amdgpu_gem_va_ioctl for Handling Last Fence Update and Timeline Management v4 (CKI Backport Bot) [RHEL-221368] {CVE-2026-43237}
- wifi: iwlwifi: reduce encryption error message to debug level in FIPS mode (Jose Ignacio Tornos Martinez) [RHEL-181065]
- wifi: iwlwifi: restore FIPS-disabled features with fips exception (Jose Ignacio Tornos Martinez) [RHEL-181065]
- wifi: mac80211: allow keys to driver with fips exception (Jose Ignacio Tornos Martinez) [RHEL-181065]
- crypto: fips: add rh_fips_exception kernel boot parameter and fips_allows() helper (Jose Ignacio Tornos Martinez) [RHEL-181065]
- netfilter: nf_conntrack_h323: fix OOB read in decode_choice() (CKI Backport Bot) [RHEL-230625] {CVE-2026-43233}
- netfilter: synproxy: refresh tcphdr after skb_ensure_writable (CKI Backport Bot) [RHEL-228909] {CVE-2026-64007}
- memfd: deny writeable mappings when implying SEAL_WRITE (Luiz Capitulino) [RHEL-228523] {CVE-2026-63952}
- mm/memfd: fix spelling in memfd_add_seals() (Luiz Capitulino) [RHEL-228523]
- vhost: reset the vring metadata cache on vring reconfiguration (CKI Backport Bot) [RHEL-224549]
- udf: fix partition descriptor append bookkeeping (CKI Backport Bot) [RHEL-179581] {CVE-2026-45991}