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High 1 exploited CVE ALSA-2026:19225 4 CVEs

Important: kernel security update

Published May 19, 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: Denial of Service in authencesn due to too-short AAD (CVE-2026-23060)
* kernel: crypto: algif_aead - Revert to operating out-of-place (CVE-2026-31431)
* kernel: crypto: af_alg - limit RX SG extraction by receive buffer budget (CVE-2026-31677)
* kernel: "Dirty Frag" ESP XFRM variant is a new universal Local Privilege Escalation (LPE) vulnerability in the Linux kernel (CVE-2026-43284)

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 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-64k 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-64k-core 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-64k-debug 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-64k-debug-core 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-64k-debug-devel 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-64k-debug-devel-matched 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-64k-debug-modules 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-64k-debug-modules-core 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-64k-debug-modules-extra 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-64k-devel 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-64k-devel-matched 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-64k-modules 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-64k-modules-core 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-64k-modules-extra 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-abi-stablelists 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-core 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-cross-headers 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-debug 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-debug-core 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-debug-devel 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-debug-devel-matched 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-debug-modules 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-debug-modules-core 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-debug-modules-extra 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-debug-uki-virt 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-devel 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-devel-matched 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-doc 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-headers 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-modules 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-modules-core 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-modules-extra 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-rt 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-rt-64k 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-rt-64k-core 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-rt-64k-debug 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-rt-64k-debug-core 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-rt-64k-debug-devel 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-rt-64k-debug-modules 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-rt-64k-debug-modules-core 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-rt-64k-debug-modules-extra 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-rt-64k-devel 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-rt-64k-modules 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-rt-64k-modules-core 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-rt-64k-modules-extra 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-rt-core 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-rt-debug 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-rt-debug-core 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-rt-debug-devel 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-rt-debug-modules 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-rt-debug-modules-core 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-rt-debug-modules-extra 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-rt-devel 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-rt-modules 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-rt-modules-core 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-rt-modules-extra 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-tools 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-tools-libs 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-tools-libs-devel 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-uki-virt 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-uki-virt-addons 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-zfcpdump 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-zfcpdump-core 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-zfcpdump-devel 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-zfcpdump-devel-matched 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-zfcpdump-modules 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-zfcpdump-modules-core 5.14.0-687.5.3.el9_8
AlmaLinux · 9 kernel-zfcpdump-modules-extra 5.14.0-687.5.3.el9_8
AlmaLinux · 9 libperf 5.14.0-687.5.3.el9_8
AlmaLinux · 9 perf 5.14.0-687.5.3.el9_8
AlmaLinux · 9 python3-perf 5.14.0-687.5.3.el9_8
AlmaLinux · 9 rtla 5.14.0-687.5.3.el9_8
AlmaLinux · 9 rv 5.14.0-687.5.3.el9_8

Vulnerabilities 4

  • High 7.8
    CVE-2026-31431 Exploited Public exploit EPSS 98%

    crypto: algif_aead - Revert to operating out-of-place

    In the Linux kernel, the following vulnerability has been resolved: crypto: algif_aead - Revert to operating out-of-place This mostly reverts commit 72548b093ee3 except for the copying of the associated data. There is no benefit in operating in-place in algif…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux Alpine
    KEV May 1, 2026
  • High 8.8
    CVE-2026-43284 Public exploit EPSS 94%

    xfrm: esp: avoid in-place decrypt on shared skb frags

    In the Linux kernel, the following vulnerability has been resolved: xfrm: esp: avoid in-place decrypt on shared skb frags MSG_SPLICE_PAGES can attach pages from a pipe directly to an skb. TCP marks such skbs with SKBFL_SHARED_FRAG after skb_splice_from_iter()…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • Unscored —
    CVE-2026-23060

    crypto: authencesn - reject too-short AAD (assoclen<8) to match ESP/ESN spec

    In the Linux kernel, the following vulnerability has been resolved: crypto: authencesn - reject too-short AAD (assoclen<8) to match ESP/ESN spec authencesn assumes an ESP/ESN-formatted AAD. When assoclen is shorter than the minimum expected length, crypto_aut…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • Unscored —
    CVE-2026-31677

    crypto: af_alg - limit RX SG extraction by receive buffer budget

    In the Linux kernel, the following vulnerability has been resolved: crypto: af_alg - limit RX SG extraction by receive buffer budget Make af_alg_get_rsgl() limit each RX scatterlist extraction to the remaining receive buffer budget. af_alg_get_rsgl() currentl…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux

References

  • report
    https://access.redhat.com/security/cve/CVE-2026-23060
  • report
    https://access.redhat.com/security/cve/CVE-2026-31431
  • report
    https://access.redhat.com/security/cve/CVE-2026-31677
  • report
    https://access.redhat.com/security/cve/CVE-2026-43284
  • report
    https://bugzilla.redhat.com/2436779
  • report
    https://bugzilla.redhat.com/2460538
  • report
    https://bugzilla.redhat.com/2461763
  • report
    https://bugzilla.redhat.com/2467771
  • advisory
    https://errata.almalinux.org/9/ALSA-2026-19225.html