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High 1 exploited CVE ALSA-2026:13577 7 CVEs

Important: kernel security update

Published May 5, 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: nvme: avoid double free special payload (CVE-2024-41073)
* kernel: net: qlogic/qede: fix potential out-of-bounds read in qede_tpa_cont() and qede_tpa_end() (CVE-2025-40252)
* kernel: crypto: asymmetric_keys - prevent overflow in asymmetric_key_generate_id (CVE-2025-68724)
* kernel: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache (CVE-2026-31402)
* kernel: Linux kernel KVM: Privilege escalation or denial of service due to improper shadow page table entry handling (CVE-2026-23401)
* kernel: crypto: algif_aead - Revert to operating out-of-place (CVE-2026-31431)

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 25

ReleasePackageFixed in
AlmaLinux · 8 bpftool 4.18.0-553.123.1.el8_10
AlmaLinux · 8 kernel 4.18.0-553.123.1.el8_10
AlmaLinux · 8 kernel-abi-stablelists 4.18.0-553.123.1.el8_10
AlmaLinux · 8 kernel-core 4.18.0-553.123.1.el8_10
AlmaLinux · 8 kernel-cross-headers 4.18.0-553.123.1.el8_10
AlmaLinux · 8 kernel-debug 4.18.0-553.123.1.el8_10
AlmaLinux · 8 kernel-debug-core 4.18.0-553.123.1.el8_10
AlmaLinux · 8 kernel-debug-devel 4.18.0-553.123.1.el8_10
AlmaLinux · 8 kernel-debug-modules 4.18.0-553.123.1.el8_10
AlmaLinux · 8 kernel-debug-modules-extra 4.18.0-553.123.1.el8_10
AlmaLinux · 8 kernel-devel 4.18.0-553.123.1.el8_10
AlmaLinux · 8 kernel-doc 4.18.0-553.123.1.el8_10
AlmaLinux · 8 kernel-headers 4.18.0-553.123.1.el8_10
AlmaLinux · 8 kernel-modules 4.18.0-553.123.1.el8_10
AlmaLinux · 8 kernel-modules-extra 4.18.0-553.123.1.el8_10
AlmaLinux · 8 kernel-tools 4.18.0-553.123.1.el8_10
AlmaLinux · 8 kernel-tools-libs 4.18.0-553.123.1.el8_10
AlmaLinux · 8 kernel-tools-libs-devel 4.18.0-553.123.1.el8_10
AlmaLinux · 8 kernel-zfcpdump 4.18.0-553.123.1.el8_10
AlmaLinux · 8 kernel-zfcpdump-core 4.18.0-553.123.1.el8_10
AlmaLinux · 8 kernel-zfcpdump-devel 4.18.0-553.123.1.el8_10
AlmaLinux · 8 kernel-zfcpdump-modules 4.18.0-553.123.1.el8_10
AlmaLinux · 8 kernel-zfcpdump-modules-extra 4.18.0-553.123.1.el8_10
AlmaLinux · 8 perf 4.18.0-553.123.1.el8_10
AlmaLinux · 8 python3-perf 4.18.0-553.123.1.el8_10

Vulnerabilities 7

  • 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
  • Critical 9.8
    CVE-2024-41073

    nvme: avoid double free special payload

    In the Linux kernel, the following vulnerability has been resolved: nvme: avoid double free special payload If a discard request needs to be retried, and that retry may fail before a new special payload is added, a double free will result. Clear the RQF_SPECI…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • Critical 9.8
    CVE-2025-40252

    net: qlogic/qede: fix potential out-of-bounds read in qede_tpa_cont() and qede_tpa_end()

    In the Linux kernel, the following vulnerability has been resolved: net: qlogic/qede: fix potential out-of-bounds read in qede_tpa_cont() and qede_tpa_end() The loops in 'qede_tpa_cont()' and 'qede_tpa_end()', iterate over 'cqe->len_list[]' using only a zero-…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • Critical 9.8
    CVE-2026-31402 Public exploit

    nfsd: fix heap overflow in NFSv4.0 LOCK replay cache

    In the Linux kernel, the following vulnerability has been resolved: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache The NFSv4.0 replay cache uses a fixed 112-byte inline buffer (rp_ibuf[NFSD4_REPLAY_ISIZE]) to store encoded operation responses. This size…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  • High 8.1
    CVE-2026-23401

    KVM: x86/mmu: Drop/zap existing present SPTE even when creating an MMIO SPTE

    In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Drop/zap existing present SPTE even when creating an MMIO SPTE When installing an emulated MMIO SPTE, do so *after* dropping/zapping the existing SPTE (if it's shadow-present). …

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 7.8
    CVE-2025-68724

    crypto: asymmetric_keys - prevent overflow in asymmetric_key_generate_id

    In the Linux kernel, the following vulnerability has been resolved: crypto: asymmetric_keys - prevent overflow in asymmetric_key_generate_id Use check_add_overflow() to guard against potential integer overflows when adding the binary blob lengths and the size…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • Unscored —
    CVE-2026-43077

    crypto: algif_aead - Fix minimum RX size check for decryption

    In the Linux kernel, the following vulnerability has been resolved: crypto: algif_aead - Fix minimum RX size check for decryption The check for the minimum receive buffer size did not take the tag size into account during decryption. Fix this by adding the re…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu

References

  • report
    https://access.redhat.com/security/cve/CVE-2024-41073
  • report
    https://access.redhat.com/security/cve/CVE-2025-40252
  • report
    https://access.redhat.com/security/cve/CVE-2025-68724
  • report
    https://access.redhat.com/security/cve/CVE-2026-23401
  • report
    https://access.redhat.com/security/cve/CVE-2026-31402
  • report
    https://access.redhat.com/security/cve/CVE-2026-31431
  • report
    https://bugzilla.redhat.com/2301637
  • report
    https://bugzilla.redhat.com/2424886
  • report
    https://bugzilla.redhat.com/2453803
  • report
    https://bugzilla.redhat.com/2454844
  • report
    https://bugzilla.redhat.com/2460538
  • advisory
    https://errata.almalinux.org/8/ALSA-2026-13577.html
  • report
    https://www.redhat.com/security/data/cve/CVE-2026-43077.html