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High ELSA-2026-38491 5 CVEs

Important: kernel security, bug fix, and enhancement update (Oracle Linux 9)

Published Jul 15, 2026 · Updated Jul 15, 2026

Ecosystem: Oracle Linux

Summary

[5.14.0-687.25.1]
- 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]

[5.14.0-687.25.1]
- futex/requeue: Revert 'Prevent NULL pointer dereference in remove_waiter() on self-deadlock'' (Phil Auld) [RHEL-193245] {CVE-2026-53166}
- locking/rtmutex: Skip remove_waiter() when waiter is not enqueued (Phil Auld) [RHEL-193245] {CVE-2026-53166}
- futex/requeue: Prevent NULL pointer dereference in remove_waiter() on self-deadlock (Phil Auld) [RHEL-193151] {CVE-2026-43499}
- rtmutex: Use waiter::task instead of current in remove_waiter() (Phil Auld) [RHEL-193151] {CVE-2026-43499}
- net: bridge: use a stable FDB dst snapshot in RCU readers (Mohammad Heib) [RHEL-179330] {CVE-2026-46086}
- kallsyms/bpf: rename __bpf_address_lookup() to bpf_address_lookup() (Anubhav Shelat) [RHEL-183236]
- kallsyms: clean up modname and modbuildid initialization in kallsyms_lookup_buildid() (Anubhav Shelat) [RHEL-183236]
- net: fix memory leak in skb_segment_list for GRO packets (CKI Backport Bot) [RHEL-189959] {CVE-2026-22979}
- crypto: ccp - copy IV using skcipher ivsize (CKI Backport Bot) [RHEL-188459] {CVE-2026-53016}

Fixed packages 29

ReleasePackageFixed in
Oracle Linux · 9 kernel 0:5.14.0-687.25.1.el9_8
Oracle Linux · 9 kernel-abi-stablelists 0:5.14.0-687.25.1.el9_8
Oracle Linux · 9 kernel-core 0:5.14.0-687.25.1.el9_8
Oracle Linux · 9 kernel-cross-headers 0:5.14.0-687.25.1.el9_8
Oracle Linux · 9 kernel-debug 0:5.14.0-687.25.1.el9_8
Oracle Linux · 9 kernel-debug-core 0:5.14.0-687.25.1.el9_8
Oracle Linux · 9 kernel-debug-devel 0:5.14.0-687.25.1.el9_8
Oracle Linux · 9 kernel-debug-devel-matched 0:5.14.0-687.25.1.el9_8
Oracle Linux · 9 kernel-debug-modules 0:5.14.0-687.25.1.el9_8
Oracle Linux · 9 kernel-debug-modules-core 0:5.14.0-687.25.1.el9_8
Oracle Linux · 9 kernel-debug-modules-extra 0:5.14.0-687.25.1.el9_8
Oracle Linux · 9 kernel-debug-uki-virt 0:5.14.0-687.25.1.el9_8
Oracle Linux · 9 kernel-devel 0:5.14.0-687.25.1.el9_8
Oracle Linux · 9 kernel-devel-matched 0:5.14.0-687.25.1.el9_8
Oracle Linux · 9 kernel-doc 0:5.14.0-687.25.1.el9_8
Oracle Linux · 9 kernel-headers 0:5.14.0-687.25.1.el9_8
Oracle Linux · 9 kernel-modules 0:5.14.0-687.25.1.el9_8
Oracle Linux · 9 kernel-modules-core 0:5.14.0-687.25.1.el9_8
Oracle Linux · 9 kernel-modules-extra 0:5.14.0-687.25.1.el9_8
Oracle Linux · 9 kernel-tools 0:5.14.0-687.25.1.el9_8
Oracle Linux · 9 kernel-tools-libs 0:5.14.0-687.25.1.el9_8
Oracle Linux · 9 kernel-tools-libs-devel 0:5.14.0-687.25.1.el9_8
Oracle Linux · 9 kernel-uki-virt 0:5.14.0-687.25.1.el9_8
Oracle Linux · 9 kernel-uki-virt-addons 0:5.14.0-687.25.1.el9_8
Oracle Linux · 9 libperf 0:5.14.0-687.25.1.el9_8
Oracle Linux · 9 perf 0:5.14.0-687.25.1.el9_8
Oracle Linux · 9 python3-perf 0:5.14.0-687.25.1.el9_8
Oracle Linux · 9 rtla 0:5.14.0-687.25.1.el9_8
Oracle Linux · 9 rv 0:5.14.0-687.25.1.el9_8

Vulnerabilities 5

  • High 7.8
    CVE-2026-43499 Public exploit

    rtmutex: Use waiter::task instead of current in remove_waiter()

    In the Linux kernel, the following vulnerability has been resolved: rtmutex: Use waiter::task instead of current in remove_waiter() remove_waiter() is used by the slowlock paths, but it is also used for proxy-lock rollback in rt_mutex_start_proxy_lock() when …

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 7.8
    CVE-2026-53016

    crypto: ccp - copy IV using skcipher ivsize

    In the Linux kernel, the following vulnerability has been resolved: crypto: ccp - copy IV using skcipher ivsize AF_ALG rfc3686-ctr-aes-ccp requests pass an 8-byte IV to the driver. ccp_aes_complete() restores AES_BLOCK_SIZE bytes into the caller's IV buffer w…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  • Unscored —
    CVE-2026-22979

    net: fix memory leak in skb_segment_list for GRO packets

    In the Linux kernel, the following vulnerability has been resolved: net: fix memory leak in skb_segment_list for GRO packets When skb_segment_list() is called during packet forwarding, it handles packets that were aggregated by the GRO engine. Historically, t…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • Unscored —
    CVE-2026-46086

    net: bridge: use a stable FDB dst snapshot in RCU readers

    In the Linux kernel, the following vulnerability has been resolved: net: bridge: use a stable FDB dst snapshot in RCU readers Local FDB entries can be rewritten in place by `fdb_delete_local()`, which updates `f->dst` to another port or to `NULL` while keepin…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • Unscored —
    CVE-2026-53166 Rejected

    This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.

    linux-raspi2 linux-hwe linux-azure linux-riscv Ubuntu