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OpenAdvisories
High RHSA-2026:6953 4 CVEs

Red Hat Security Advisory: kernel security update

Published Apr 8, 2026 · Updated Aug 22, 2026

Ecosystem: Red Hat

Fixed packages 24

ReleasePackageFixed in
Red Hat · RHEL 8.2 AUS rhel_aus:8.2::baseos bpftool 0:4.18.0-193.193.1.el8_2
Red Hat · RHEL 8.2 AUS rhel_aus:8.2::baseos bpftool-debuginfo 0:4.18.0-193.193.1.el8_2
Red Hat · RHEL 8.2 AUS rhel_aus:8.2::baseos kernel 0:4.18.0-193.193.1.el8_2
Red Hat · RHEL 8.2 AUS rhel_aus:8.2::baseos kernel-abi-whitelists 0:4.18.0-193.193.1.el8_2
Red Hat · RHEL 8.2 AUS rhel_aus:8.2::baseos kernel-core 0:4.18.0-193.193.1.el8_2
Red Hat · RHEL 8.2 AUS rhel_aus:8.2::baseos kernel-debug 0:4.18.0-193.193.1.el8_2
Red Hat · RHEL 8.2 AUS rhel_aus:8.2::baseos kernel-debug-core 0:4.18.0-193.193.1.el8_2
Red Hat · RHEL 8.2 AUS rhel_aus:8.2::baseos kernel-debug-debuginfo 0:4.18.0-193.193.1.el8_2
Red Hat · RHEL 8.2 AUS rhel_aus:8.2::baseos kernel-debug-devel 0:4.18.0-193.193.1.el8_2
Red Hat · RHEL 8.2 AUS rhel_aus:8.2::baseos kernel-debug-modules 0:4.18.0-193.193.1.el8_2
Red Hat · RHEL 8.2 AUS rhel_aus:8.2::baseos kernel-debug-modules-extra 0:4.18.0-193.193.1.el8_2
Red Hat · RHEL 8.2 AUS rhel_aus:8.2::baseos kernel-debuginfo 0:4.18.0-193.193.1.el8_2
Red Hat · RHEL 8.2 AUS rhel_aus:8.2::baseos kernel-debuginfo-common-x86_64 0:4.18.0-193.193.1.el8_2
Red Hat · RHEL 8.2 AUS rhel_aus:8.2::baseos kernel-devel 0:4.18.0-193.193.1.el8_2
Red Hat · RHEL 8.2 AUS rhel_aus:8.2::baseos kernel-doc 0:4.18.0-193.193.1.el8_2
Red Hat · RHEL 8.2 AUS rhel_aus:8.2::baseos kernel-modules 0:4.18.0-193.193.1.el8_2
Red Hat · RHEL 8.2 AUS rhel_aus:8.2::baseos kernel-modules-extra 0:4.18.0-193.193.1.el8_2
Red Hat · RHEL 8.2 AUS rhel_aus:8.2::baseos kernel-tools 0:4.18.0-193.193.1.el8_2
Red Hat · RHEL 8.2 AUS rhel_aus:8.2::baseos kernel-tools-debuginfo 0:4.18.0-193.193.1.el8_2
Red Hat · RHEL 8.2 AUS rhel_aus:8.2::baseos kernel-tools-libs 0:4.18.0-193.193.1.el8_2
Red Hat · RHEL 8.2 AUS rhel_aus:8.2::baseos perf 0:4.18.0-193.193.1.el8_2
Red Hat · RHEL 8.2 AUS rhel_aus:8.2::baseos perf-debuginfo 0:4.18.0-193.193.1.el8_2
Red Hat · RHEL 8.2 AUS rhel_aus:8.2::baseos python3-perf 0:4.18.0-193.193.1.el8_2
Red Hat · RHEL 8.2 AUS rhel_aus:8.2::baseos python3-perf-debuginfo 0:4.18.0-193.193.1.el8_2

Vulnerabilities 4

  • High 7.8
    CVE-2025-38180

    net: atm: fix /proc/net/atm/lec handling

    In the Linux kernel, the following vulnerability has been resolved: net: atm: fix /proc/net/atm/lec handling /proc/net/atm/lec must ensure safety against dev_lec[] changes. It appears it had dev_put() calls without prior dev_hold(), leading to imbalance and U…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 7.8
    CVE-2026-23209

    macvlan: fix error recovery in macvlan_common_newlink()

    In the Linux kernel, the following vulnerability has been resolved: macvlan: fix error recovery in macvlan_common_newlink() valis provided a nice repro to crash the kernel: ip link add p1 type veth peer p2 ip link set address 00:00:00:00:00:20 dev p1 ip link …

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 7.1
    CVE-2021-4460

    drm/amdkfd: Fix UBSAN shift-out-of-bounds warning

    In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Fix UBSAN shift-out-of-bounds warning If get_num_sdma_queues or get_num_xgmi_sdma_queues is 0, we end up doing a shift operation where the number of bits shifted equals number of …

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  • Unscored —
    CVE-2022-49674

    dm raid: fix accesses beyond end of raid member array

    In the Linux kernel, the following vulnerability has been resolved: dm raid: fix accesses beyond end of raid member array On dm-raid table load (using raid_ctr), dm-raid allocates an array rs->devs[rs->raid_disks] for the raid device members. rs->raid_disks i…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu

References

  • article
    https://access.redhat.com/security/updates/classification/#moderate
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2347967
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2376376
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2400732
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2439900
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_6953.json
  • report
    https://access.redhat.com/security/cve/CVE-2021-4460
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2021-4460
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2021-4460
  • article
    https://lore.kernel.org/linux-cve-announce/2025100114-CVE-2021-4460-aa71@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2022-49674
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2022-49674
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2022-49674
  • article
    https://lore.kernel.org/linux-cve-announce/2025022624-CVE-2022-49674-90d4@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2025-38180
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2025-38180
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2025-38180
  • article
    https://lore.kernel.org/linux-cve-announce/2025070410-CVE-2025-38180-c6d0@gregkh/T
  • report
    https://access.redhat.com/security/cve/CVE-2026-23209
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-23209
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-23209
  • article
    https://lore.kernel.org/linux-cve-announce/2026021439-CVE-2026-23209-9ad6@gregkh/T