[El-errata] ELSA-2026-83207 Important: Oracle Linux 10 kernel security, bug fix, and enhancement update

Errata Announcements for Oracle Linux el-errata at oss.oracle.com
Mon Oct 19 10:41:45 UTC 2026 

Oracle Linux Security Advisory ELSA-2026-83207

http://linux.oracle.com/errata/ELSA-2026-83207.html

The following updated rpms for Oracle Linux 10 have been uploaded to the Unbreakable Linux Network:

x86_64:
kernel-6.12.0-211.66.1.el10_2.x86_64.rpm
kernel-abi-stablelists-6.12.0-211.66.1.el10_2.noarch.rpm
kernel-core-6.12.0-211.66.1.el10_2.x86_64.rpm
kernel-cross-headers-6.12.0-211.66.1.el10_2.x86_64.rpm
kernel-debug-6.12.0-211.66.1.el10_2.x86_64.rpm
kernel-debug-core-6.12.0-211.66.1.el10_2.x86_64.rpm
kernel-debug-devel-6.12.0-211.66.1.el10_2.x86_64.rpm
kernel-debug-devel-matched-6.12.0-211.66.1.el10_2.x86_64.rpm
kernel-debug-modules-6.12.0-211.66.1.el10_2.x86_64.rpm
kernel-debug-modules-core-6.12.0-211.66.1.el10_2.x86_64.rpm
kernel-debug-modules-extra-6.12.0-211.66.1.el10_2.x86_64.rpm
kernel-debug-uki-virt-6.12.0-211.66.1.el10_2.x86_64.rpm
kernel-devel-6.12.0-211.66.1.el10_2.x86_64.rpm
kernel-devel-matched-6.12.0-211.66.1.el10_2.x86_64.rpm
kernel-doc-6.12.0-211.66.1.el10_2.noarch.rpm
kernel-headers-6.12.0-211.66.1.el10_2.x86_64.rpm
kernel-modules-6.12.0-211.66.1.el10_2.x86_64.rpm
kernel-modules-core-6.12.0-211.66.1.el10_2.x86_64.rpm
kernel-modules-extra-6.12.0-211.66.1.el10_2.x86_64.rpm
kernel-modules-extra-matched-6.12.0-211.66.1.el10_2.x86_64.rpm
kernel-tools-6.12.0-211.66.1.el10_2.x86_64.rpm
kernel-tools-libs-6.12.0-211.66.1.el10_2.x86_64.rpm
kernel-tools-libs-devel-6.12.0-211.66.1.el10_2.x86_64.rpm
kernel-uki-virt-6.12.0-211.66.1.el10_2.x86_64.rpm
kernel-uki-virt-addons-6.12.0-211.66.1.el10_2.x86_64.rpm
libperf-6.12.0-211.66.1.el10_2.x86_64.rpm
perf-6.12.0-211.66.1.el10_2.x86_64.rpm
python3-perf-6.12.0-211.66.1.el10_2.x86_64.rpm
rtla-6.12.0-211.66.1.el10_2.x86_64.rpm
rv-6.12.0-211.66.1.el10_2.x86_64.rpm

aarch64:
kernel-cross-headers-6.12.0-211.66.1.el10_2.aarch64.rpm
kernel-headers-6.12.0-211.66.1.el10_2.aarch64.rpm
kernel-tools-6.12.0-211.66.1.el10_2.aarch64.rpm
kernel-tools-libs-6.12.0-211.66.1.el10_2.aarch64.rpm
kernel-tools-libs-devel-6.12.0-211.66.1.el10_2.aarch64.rpm
libperf-6.12.0-211.66.1.el10_2.aarch64.rpm
perf-6.12.0-211.66.1.el10_2.aarch64.rpm
python3-perf-6.12.0-211.66.1.el10_2.aarch64.rpm
rtla-6.12.0-211.66.1.el10_2.aarch64.rpm
rv-6.12.0-211.66.1.el10_2.aarch64.rpm


SRPMS:
http://oss.oracle.com/ol10/SRPMS-updates/kernel-6.12.0-211.66.1.el10_2.src.rpm

Related CVEs:

CVE-2026-45859
CVE-2026-46319
CVE-2026-53011
CVE-2026-63899
CVE-2026-63974
CVE-2026-64030
CVE-2026-64032
CVE-2026-64162
CVE-2026-68140
CVE-2026-68377
CVE-2026-72262
CVE-2026-74574
CVE-2026-74641
CVE-2026-80985
CVE-2026-89526
CVE-2026-89689
CVE-2026-89894
CVE-2026-90036
CVE-2026-93207
CVE-2026-93228




Description of changes:

[6.12.0-211.66.1]
- Add new Oracle Linux Driver Signing (key 1) certificate [Orabug: 37985782]
- 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
- Update module name for cryptographic module [Orabug: 37400433]
- Clean git history at setup stage

[6.12.0-211.66.1]
- net/smc: carry oversized SMC-Rv2 LLC messages in the queue entry (Jan Polensky) [RHEL-271473] {CVE-2026-80985}
- net/smc: bound the peer rkey counts in SMC-Rv2 LLC messages (Jan Polensky) [RHEL-271473] {CVE-2026-80985}
- net/smc: fix use-after-free of the LLC qentry in smc_llc_srv_add_link() (Jan Polensky) [RHEL-271473] {CVE-2026-80985}
- SUNRPC: Zero rpc_gss_wire_cred at svcauth_gss_decode_credbody() entry (Olga Kornievskaia) [RHEL-275057] {CVE-2026-93207}
- svcrdma: Reject Write/Reply chunks with segcount 0 (Olga Kornievskaia) [RHEL-275073] {CVE-2026-93228}
- nfsd: don't free session slots that are still in use (Olga Kornievskaia) [RHEL-270850] {CVE-2026-89689}
- NFSD: Prevent client use-after-free during blocked-lock reaping (Olga Kornievskaia) [RHEL-270946] {CVE-2026-90036}
- NFSD: Prevent client use-after-free during delegation revoke (Olga Kornievskaia) [RHEL-270946] {CVE-2026-89659}
- svcrdma: Validate Read chunk positions before reconstruction (Olga Kornievskaia) [RHEL-271459] {CVE-2026-89526}
- ice: skip unnecessary VF reset when setting trust (Jose Ignacio Tornos Martinez) [RHEL-143410]
- iavf: send MAC change request synchronously (Jose Ignacio Tornos Martinez) [RHEL-143410]
- i40e: skip unnecessary VF reset when setting trust (Jose Ignacio Tornos Martinez) [RHEL-143410]
- iavf: iavf_virtchnl_completion: drop duplicate ether_addr_equal() test (Jose Ignacio Tornos Martinez) [RHEL-143410]
- media: cx231xx: reject geometry changes while the VBI queue is busy (CKI Backport Bot) [RHEL-262501] {CVE-2026-89894}
- ASoC: SOF: ipc3-control: Fix heap overflow in bytes_ext put/get (CKI Backport Bot) [RHEL-261677] {CVE-2026-72262}
- net/iucv: fix use-after-free of a severed iucv_path (CKI Backport Bot) [RHEL-260529] {CVE-2026-68140}
- wifi: mac80211: bounds-check link_id in ieee80211_ml_epcs (CKI Backport Bot) [RHEL-259554] {CVE-2026-64030}
- USB: serial: cypress_m8: fix memory corruption with small endpoint (Desnes Nunes) [RHEL-259316] {CVE-2026-63956}
- USB: serial: safe_serial: fix memory corruption with small endpoint (Desnes Nunes) [RHEL-259316] {CVE-2026-63957}
- USB: serial: omninet: fix memory corruption with small endpoint (Desnes Nunes) [RHEL-259316] {CVE-2026-63928}
- USB: serial: mxuport: fix memory corruption with small endpoint (Desnes Nunes) [RHEL-259316] {CVE-2026-63899}
- netfilter: nfnetlink_queue: do shared-unconfirmed check before segmentation (Phil Sutter) [RHEL-230721] {CVE-2026-45859}
- ALSA: usx2y: bound the hwdep mmap fault offset (CKI Backport Bot) [RHEL-256452] {CVE-2026-74641}
- dmaengine: idxd: fix fdev setup failure cleanup in idxd_cdev_open() (CKI Backport Bot) [RHEL-254620] {CVE-2026-74574}
- idpf: fix max_vport related crash on allocation error during init (Michal Schmidt) [RHEL-243402] {CVE-2026-68291}
- idpf: fix double free and use-after-free in aux device error paths (Michal Schmidt) [RHEL-243402] {CVE-2026-53286}
- idpf: fix read_dev_clk_lock spinlock init in idpf_ptp_init() (Michal Schmidt) [RHEL-243402] {CVE-2026-64162}
- idpf: fix PREEMPT_RT raw/bh spinlock nesting for async VC handling (Michal Schmidt) [RHEL-243402] {CVE-2026-31647}
- Bluetooth: hci_core: Fix queuing tx_work after workqueue is drained (CKI Backport Bot) [RHEL-244763] {CVE-2026-63974}
- Bluetooth: hci_sync: Set HCI_CMD_DRAIN_WORKQUEUE during device close (CKI Backport Bot) [RHEL-244763] {CVE-2026-63974}
- net/sched: act_tunnel_key: Defer dst_release to RCU callback (CKI Backport Bot) [RHEL-240917] {CVE-2026-68377}
- bridge: mcast: Fix a possible use-after-free when removing a bridge port (CKI Backport Bot) [RHEL-232531] {CVE-2026-64032}
- net/sched: act_ct: Only release RCU read lock after ct_ft (CKI Backport Bot) [RHEL-229655] {CVE-2026-46319}
- net/sched: taprio: fix use-after-free in advance_sched() on schedule switch (CKI Backport Bot) [RHEL-226492] {CVE-2026-53011}
- ionic: convert to ndo_hwtstamp API (CKI Backport Bot) [RHEL-165657]

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