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OpenAdvisories
Critical RHSA-2026:3293 8 CVEs

Red Hat Security Advisory: kernel security update

Published Feb 26, 2026 · Updated Aug 22, 2026

Ecosystem: Red Hat

Fixed packages 47

ReleasePackageFixed in
Red Hat · RHEL 9.0 E4S rhel_e4s:9.0::appstream bpftool-debuginfo 0:5.14.0-70.167.1.el9_0
Red Hat · RHEL 9.0 E4S rhel_e4s:9.0::appstream kernel-debug-debuginfo 0:5.14.0-70.167.1.el9_0
Red Hat · RHEL 9.0 E4S rhel_e4s:9.0::appstream kernel-debug-devel 0:5.14.0-70.167.1.el9_0
Red Hat · RHEL 9.0 E4S rhel_e4s:9.0::appstream kernel-debug-devel-matched 0:5.14.0-70.167.1.el9_0
Red Hat · RHEL 9.0 E4S rhel_e4s:9.0::appstream kernel-debuginfo 0:5.14.0-70.167.1.el9_0
Red Hat · RHEL 9.0 E4S rhel_e4s:9.0::appstream kernel-debuginfo-common-aarch64 0:5.14.0-70.167.1.el9_0
Red Hat · RHEL 9.0 E4S rhel_e4s:9.0::appstream kernel-debuginfo-common-ppc64le 0:5.14.0-70.167.1.el9_0
Red Hat · RHEL 9.0 E4S rhel_e4s:9.0::appstream kernel-debuginfo-common-s390x 0:5.14.0-70.167.1.el9_0
Red Hat · RHEL 9.0 E4S rhel_e4s:9.0::appstream kernel-debuginfo-common-x86_64 0:5.14.0-70.167.1.el9_0
Red Hat · RHEL 9.0 E4S rhel_e4s:9.0::appstream kernel-devel 0:5.14.0-70.167.1.el9_0
Red Hat · RHEL 9.0 E4S rhel_e4s:9.0::appstream kernel-devel-matched 0:5.14.0-70.167.1.el9_0
Red Hat · RHEL 9.0 E4S rhel_e4s:9.0::appstream kernel-doc 0:5.14.0-70.167.1.el9_0
Red Hat · RHEL 9.0 E4S rhel_e4s:9.0::appstream kernel-tools-debuginfo 0:5.14.0-70.167.1.el9_0
Red Hat · RHEL 9.0 E4S rhel_e4s:9.0::appstream kernel-zfcpdump-debuginfo 0:5.14.0-70.167.1.el9_0
Red Hat · RHEL 9.0 E4S rhel_e4s:9.0::appstream kernel-zfcpdump-devel 0:5.14.0-70.167.1.el9_0
Red Hat · RHEL 9.0 E4S rhel_e4s:9.0::appstream kernel-zfcpdump-devel-matched 0:5.14.0-70.167.1.el9_0
Red Hat · RHEL 9.0 E4S rhel_e4s:9.0::appstream perf 0:5.14.0-70.167.1.el9_0
Red Hat · RHEL 9.0 E4S rhel_e4s:9.0::appstream perf-debuginfo 0:5.14.0-70.167.1.el9_0
Red Hat · RHEL 9.0 E4S rhel_e4s:9.0::appstream python3-perf-debuginfo 0:5.14.0-70.167.1.el9_0
Red Hat · RHEL 9.0 E4S rhel_e4s:9.0::baseos bpftool 0:5.14.0-70.167.1.el9_0
Red Hat · RHEL 9.0 E4S rhel_e4s:9.0::baseos bpftool-debuginfo 0:5.14.0-70.167.1.el9_0
Red Hat · RHEL 9.0 E4S rhel_e4s:9.0::baseos kernel 0:5.14.0-70.167.1.el9_0
Red Hat · RHEL 9.0 E4S rhel_e4s:9.0::baseos kernel-abi-stablelists 0:5.14.0-70.167.1.el9_0
Red Hat · RHEL 9.0 E4S rhel_e4s:9.0::baseos kernel-core 0:5.14.0-70.167.1.el9_0
Red Hat · RHEL 9.0 E4S rhel_e4s:9.0::baseos kernel-debug 0:5.14.0-70.167.1.el9_0
Red Hat · RHEL 9.0 E4S rhel_e4s:9.0::baseos kernel-debug-core 0:5.14.0-70.167.1.el9_0
Red Hat · RHEL 9.0 E4S rhel_e4s:9.0::baseos kernel-debug-debuginfo 0:5.14.0-70.167.1.el9_0
Red Hat · RHEL 9.0 E4S rhel_e4s:9.0::baseos kernel-debug-modules 0:5.14.0-70.167.1.el9_0
Red Hat · RHEL 9.0 E4S rhel_e4s:9.0::baseos kernel-debug-modules-extra 0:5.14.0-70.167.1.el9_0
Red Hat · RHEL 9.0 E4S rhel_e4s:9.0::baseos kernel-debuginfo 0:5.14.0-70.167.1.el9_0
Red Hat · RHEL 9.0 E4S rhel_e4s:9.0::baseos kernel-debuginfo-common-aarch64 0:5.14.0-70.167.1.el9_0
Red Hat · RHEL 9.0 E4S rhel_e4s:9.0::baseos kernel-debuginfo-common-ppc64le 0:5.14.0-70.167.1.el9_0
Red Hat · RHEL 9.0 E4S rhel_e4s:9.0::baseos kernel-debuginfo-common-s390x 0:5.14.0-70.167.1.el9_0
Red Hat · RHEL 9.0 E4S rhel_e4s:9.0::baseos kernel-debuginfo-common-x86_64 0:5.14.0-70.167.1.el9_0
Red Hat · RHEL 9.0 E4S rhel_e4s:9.0::baseos kernel-modules 0:5.14.0-70.167.1.el9_0
Red Hat · RHEL 9.0 E4S rhel_e4s:9.0::baseos kernel-modules-extra 0:5.14.0-70.167.1.el9_0
Red Hat · RHEL 9.0 E4S rhel_e4s:9.0::baseos kernel-tools 0:5.14.0-70.167.1.el9_0
Red Hat · RHEL 9.0 E4S rhel_e4s:9.0::baseos kernel-tools-debuginfo 0:5.14.0-70.167.1.el9_0
Red Hat · RHEL 9.0 E4S rhel_e4s:9.0::baseos kernel-tools-libs 0:5.14.0-70.167.1.el9_0
Red Hat · RHEL 9.0 E4S rhel_e4s:9.0::baseos kernel-zfcpdump 0:5.14.0-70.167.1.el9_0
Red Hat · RHEL 9.0 E4S rhel_e4s:9.0::baseos kernel-zfcpdump-core 0:5.14.0-70.167.1.el9_0
Red Hat · RHEL 9.0 E4S rhel_e4s:9.0::baseos kernel-zfcpdump-debuginfo 0:5.14.0-70.167.1.el9_0
Red Hat · RHEL 9.0 E4S rhel_e4s:9.0::baseos kernel-zfcpdump-modules 0:5.14.0-70.167.1.el9_0
Red Hat · RHEL 9.0 E4S rhel_e4s:9.0::baseos kernel-zfcpdump-modules-extra 0:5.14.0-70.167.1.el9_0
Red Hat · RHEL 9.0 E4S rhel_e4s:9.0::baseos perf-debuginfo 0:5.14.0-70.167.1.el9_0
Red Hat · RHEL 9.0 E4S rhel_e4s:9.0::baseos python3-perf 0:5.14.0-70.167.1.el9_0
Red Hat · RHEL 9.0 E4S rhel_e4s:9.0::baseos python3-perf-debuginfo 0:5.14.0-70.167.1.el9_0

Vulnerabilities 8

  • Critical 9.4
    CVE-2025-39933

    smb: client: let recv_done verify data_offset, data_length and remaining_data_length

    In the Linux kernel, the following vulnerability has been resolved: smb: client: let recv_done verify data_offset, data_length and remaining_data_length This is inspired by the related server fixes.

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  • High 7.8
    CVE-2025-38022

    RDMA/core: Fix "KASAN: slab-use-after-free Read in ib_register_device" problem

    In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Fix "KASAN: slab-use-after-free Read in ib_register_device" problem Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120 print_addr…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 7.8
    CVE-2025-40269

    ALSA: usb-audio: Fix potential overflow of PCM transfer buffer

    In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Fix potential overflow of PCM transfer buffer The PCM stream data in USB-audio driver is transferred over USB URB packet buffers, and each packet size is determined dynamical…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  • High 7.8
    CVE-2025-40271 Public exploit

    fs/proc: fix uaf in proc_readdir_de()

    In the Linux kernel, the following vulnerability has been resolved: fs/proc: fix uaf in proc_readdir_de() Pde is erased from subdir rbtree through rb_erase(), but not set the node to EMPTY, which may result in uaf access. We should use RB_CLEAR_NODE() set the…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  • High 7.5
    CVE-2025-68349

    NFSv4/pNFS: Clear NFS_INO_LAYOUTCOMMIT in pnfs_mark_layout_stateid_invalid

    In the Linux kernel, the following vulnerability has been resolved: NFSv4/pNFS: Clear NFS_INO_LAYOUTCOMMIT in pnfs_mark_layout_stateid_invalid Fixes a crash when layout is null during this call stack: write_inode -> nfs4_write_inode -> pnfs_layoutcommit_inode…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • Unscored —
    CVE-2023-53821

    ip6_vti: fix slab-use-after-free in decode_session6

    In the Linux kernel, the following vulnerability has been resolved: ip6_vti: fix slab-use-after-free in decode_session6 When ipv6_vti device is set to the qdisc of the sfb type, the cb field of the sent skb may be modified during enqueuing. Then, slab-use-aft…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  • Unscored —
    CVE-2025-38415

    Squashfs: check return result of sb_min_blocksize

    In the Linux kernel, the following vulnerability has been resolved: Squashfs: check return result of sb_min_blocksize Syzkaller reports an "UBSAN: shift-out-of-bounds in squashfs_bio_read" bug. Syzkaller forks multiple processes which after mounting the Squas…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  • Unscored —
    CVE-2025-39760

    usb: core: config: Prevent OOB read in SS endpoint companion parsing

    In the Linux kernel, the following vulnerability has been resolved: usb: core: config: Prevent OOB read in SS endpoint companion parsing usb_parse_ss_endpoint_companion() checks descriptor type before length, enabling a potentially odd read outside of the buf…

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

References

  • article
    https://access.redhat.com/security/updates/classification/#moderate
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2373326
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2383404
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2394601
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2401432
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2419837
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2419919
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2420329
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2424880
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_3293.json
  • report
    https://access.redhat.com/security/cve/CVE-2023-53821
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2023-53821
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2023-53821
  • article
    https://lore.kernel.org/linux-cve-announce/2025120950-CVE-2023-53821-9542@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2025-38022
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2025-38022
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2025-38022
  • article
    https://lore.kernel.org/linux-cve-announce/2025061846-CVE-2025-38022-41b3@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2025-38415
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2025-38415
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2025-38415
  • article
    https://lore.kernel.org/linux-cve-announce/2025072513-CVE-2025-38415-c634@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2025-39760
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2025-39760
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2025-39760
  • article
    https://lore.kernel.org/linux-cve-announce/2025091145-CVE-2025-39760-2d5f@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2025-39933
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2025-39933
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2025-39933
  • article
    https://lore.kernel.org/linux-cve-announce/2025100417-CVE-2025-39933-e224@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2025-40269
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2025-40269
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2025-40269
  • article
    https://lore.kernel.org/linux-cve-announce/2025120716-CVE-2025-40269-9769@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2025-40271
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2025-40271
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2025-40271
  • article
    https://lore.kernel.org/linux-cve-announce/2025120716-CVE-2025-40271-7612@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2025-68349