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High RHSA-2026:33219 2 CVEs

Red Hat Security Advisory: kpatch-patch-4_18_0-477_107_1, kpatch-patch-4_18_0-477_120_1, kpatch-patch-4_18_0-477_130_1, kpatch-patch-4_18_0-477_143_1, and kpatch-patch-4_18_0-477_97_1 security update

Published Jun 30, 2026 · Updated Oct 10, 2026

Ecosystem: Red Hat

Fixed packages 15

ReleasePackageFixed in
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kpatch-patch-4_18_0-477_107_1 0:1-8.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kpatch-patch-4_18_0-477_107_1-debuginfo 0:1-8.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kpatch-patch-4_18_0-477_107_1-debugsource 0:1-8.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kpatch-patch-4_18_0-477_120_1 0:1-7.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kpatch-patch-4_18_0-477_120_1-debuginfo 0:1-7.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kpatch-patch-4_18_0-477_120_1-debugsource 0:1-7.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kpatch-patch-4_18_0-477_130_1 0:1-5.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kpatch-patch-4_18_0-477_130_1-debuginfo 0:1-5.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kpatch-patch-4_18_0-477_130_1-debugsource 0:1-5.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kpatch-patch-4_18_0-477_143_1 0:1-2.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kpatch-patch-4_18_0-477_143_1-debuginfo 0:1-2.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kpatch-patch-4_18_0-477_143_1-debugsource 0:1-2.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kpatch-patch-4_18_0-477_97_1 0:1-12.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kpatch-patch-4_18_0-477_97_1-debuginfo 0:1-12.el8_8
Red Hat · RHEL 8.8 E4S rhel_e4s:8.8::baseos kpatch-patch-4_18_0-477_97_1-debugsource 0:1-12.el8_8

Vulnerabilities 2

  • High 7.8
    CVE-2026-46331 Public exploit

    net/sched: fix pedit partial COW leading to page cache corruption

    In the Linux kernel, the following vulnerability has been resolved: net/sched: fix pedit partial COW leading to page cache corruption tcf_pedit_act() computes the COW range for skb_ensure_writable() once before the key loop using tcfp_off_max_hint, but the hi…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  • High 7.1
    CVE-2026-46243 Public exploit

    smb: client: reject userspace cifs.spnego descriptions

    In the Linux kernel, the following vulnerability has been resolved: smb: client: reject userspace cifs.spnego descriptions cifs.spnego key descriptions contain authority-bearing fields such as pid, uid, creduid, and upcall_target that cifs.upcall treats as ke…

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

References

  • article
    https://access.redhat.com/security/updates/classification/#important
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2479492
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2481486
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_33219.json
  • report
    https://access.redhat.com/security/cve/CVE-2026-46243
  • article
    https://access.redhat.com/security/vulnerabilities/RHSB-2026-005
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-46243
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-46243
  • article
    https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3da1fdf4efbc490041eb4f836bf596201203f8f2
  • article
    https://lore.kernel.org/linux-cve-announce/2026060140-CVE-2026-46243-3d1c@gregkh/
  • report
    https://access.redhat.com/security/cve/CVE-2026-46331
  • article
    https://access.redhat.com/security/vulnerabilities/RHSB-2026-008
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-46331
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-46331
  • article
    https://lore.kernel.org/netdev/20260516162825.1480113-1-rollkingzzc@gmail.com/