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High ALSA-2026:38491 5 CVEs

Important: kernel security, bug fix, and enhancement update

Published Jul 13, 2026 · Updated Oct 29, 2026

Ecosystem: AlmaLinux

Summary

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

Security Fix(es):

* kernel: Linux kernel: Memory leak in networking due to incorrect GRO packet handling (CVE-2026-22979)
* kernel: rtmutex: Use waiter::task instead of current in remove_waiter() (CVE-2026-43499)
* kernel: net: bridge: use a stable FDB dst snapshot in RCU readers (CVE-2026-46086)
* kernel: crypto: ccp - copy IV using skcipher ivsize (CVE-2026-53016)
* kernel: futex/requeue: Prevent NULL pointer dereference in remove_waiter() on self-deadlock (CVE-2026-53166)

Bug Fix(es) and Enhancement(s):

* Kernel panic very early during boot while reading a tracefs file (available_filter_functions) due to invalid module name pointer [9.8.z] (JIRA:AlmaLinux-183236)

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.

Fixed packages 74

ReleasePackageFixed in
AlmaLinux · 9 kernel 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-64k 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-64k-core 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-64k-debug 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-64k-debug-core 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-64k-debug-devel 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-64k-debug-devel-matched 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-64k-debug-modules 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-64k-debug-modules-core 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-64k-debug-modules-extra 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-64k-devel 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-64k-devel-matched 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-64k-modules 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-64k-modules-core 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-64k-modules-extra 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-abi-stablelists 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-core 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-cross-headers 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-debug 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-debug-core 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-debug-devel 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-debug-devel-matched 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-debug-modules 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-debug-modules-core 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-debug-modules-extra 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-debug-uki-virt 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-devel 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-devel-matched 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-doc 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-headers 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-modules 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-modules-core 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-modules-extra 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-rt 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-rt-64k 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-rt-64k-core 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-rt-64k-debug 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-rt-64k-debug-core 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-rt-64k-debug-devel 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-rt-64k-debug-modules 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-rt-64k-debug-modules-core 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-rt-64k-debug-modules-extra 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-rt-64k-devel 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-rt-64k-modules 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-rt-64k-modules-core 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-rt-64k-modules-extra 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-rt-core 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-rt-debug 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-rt-debug-core 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-rt-debug-devel 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-rt-debug-modules 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-rt-debug-modules-core 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-rt-debug-modules-extra 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-rt-devel 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-rt-modules 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-rt-modules-core 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-rt-modules-extra 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-tools 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-tools-libs 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-tools-libs-devel 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-uki-virt 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-uki-virt-addons 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-zfcpdump 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-zfcpdump-core 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-zfcpdump-devel 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-zfcpdump-devel-matched 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-zfcpdump-modules 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-zfcpdump-modules-core 5.14.0-687.25.1.el9_8
AlmaLinux · 9 kernel-zfcpdump-modules-extra 5.14.0-687.25.1.el9_8
AlmaLinux · 9 libperf 5.14.0-687.25.1.el9_8
AlmaLinux · 9 perf 5.14.0-687.25.1.el9_8
AlmaLinux · 9 python3-perf 5.14.0-687.25.1.el9_8
AlmaLinux · 9 rtla 5.14.0-687.25.1.el9_8
AlmaLinux · 9 rv 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

References

  • report
    https://access.redhat.com/security/cve/CVE-2026-22979
  • report
    https://access.redhat.com/security/cve/CVE-2026-43499
  • report
    https://access.redhat.com/security/cve/CVE-2026-46086
  • report
    https://access.redhat.com/security/cve/CVE-2026-53016
  • report
    https://access.redhat.com/security/cve/CVE-2026-53166
  • report
    https://bugzilla.redhat.com/2432402
  • report
    https://bugzilla.redhat.com/2480453
  • report
    https://bugzilla.redhat.com/2481989
  • report
    https://bugzilla.redhat.com/2492269
  • report
    https://bugzilla.redhat.com/2492805
  • advisory
    https://errata.almalinux.org/9/ALSA-2026-38491.html