RLSA-2026:95367 (CVE-2026-64378)

Vulnerability from osv_rocky – Published: 2026-11-06 12:09 – Updated: 2026-11-07 12:12 – Source website
VLAI
Summary
Important: kernel security update
Details

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

  • kernel: writeback: fix race between cgroup_writeback_umount() and inode_switch_wbs() (CVE-2026-64378)

  • kernel: sunrpc: pin svc_xprt across the asynchronous TLS handshake callback (CVE-2026-72222)

  • kernel: sunrpc: wait for in-flight TLS handshake callback when cancel loses race (CVE-2026-72221)

  • kernel: fs/resctrl: Fix use-after-free during unmount (CVE-2026-72080)

  • kernel: sctp: clear new_transport when removing a peer (CVE-2026-74586)

  • kernel: openvswitch: Fix CT limit teardown use-after-free (CVE-2026-89488)

  • kernel: PCI/sysfs: Add lockdown checks to legacy I/O and memory handlers (CVE-2026-90315)

  • kernel: kernel: xfs: Unauthorized data modification via improper file size exchange handling (CVE-2026-98974)

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.

Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Credits
Rocky Enterprise Software Foundation
Red Hat
References
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "Rocky Linux:10",
        "name": "kernel",
        "purl": "pkg:rpm/rocky-linux/kernel?distro=rocky-linux-10\u0026epoch=0"
      },
      "ranges": [
        {
          "database_specific": {
            "yum_repository": "BaseOS"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:6.12.0-211.74.1.el10_2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "credits": [
    {
      "name": "Rocky Enterprise Software Foundation"
    },
    {
      "name": "Red Hat"
    }
  ],
  "database_specific": {
    "license": "CC-BY-4.0",
    "license_url": "https://creativecommons.org/licenses/by/4.0/",
    "source_advisory": "RHSA-2026:95367"
  },
  "details": "The kernel packages contain the Linux kernel, the core of any Linux operating system.\n\nSecurity Fix(es):\n\n* kernel: writeback: fix race between cgroup_writeback_umount() and inode_switch_wbs() (CVE-2026-64378)\n\n* kernel: sunrpc: pin svc_xprt across the asynchronous TLS handshake callback (CVE-2026-72222)\n\n* kernel: sunrpc: wait for in-flight TLS handshake callback when cancel loses race (CVE-2026-72221)\n\n* kernel: fs/resctrl: Fix use-after-free during unmount (CVE-2026-72080)\n\n* kernel: sctp: clear new_transport when removing a peer (CVE-2026-74586)\n\n* kernel: openvswitch: Fix CT limit teardown use-after-free (CVE-2026-89488)\n\n* kernel: PCI/sysfs: Add lockdown checks to legacy I/O and memory handlers (CVE-2026-90315)\n\n* kernel: kernel: xfs: Unauthorized data modification via improper file size exchange handling (CVE-2026-98974)\n\nFor 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.",
  "id": "RLSA-2026:95367",
  "modified": "2026-11-07T12:12:46.115183Z",
  "published": "2026-11-06T12:09:31.090950Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://errata.rockylinux.org/RLSA-2026:95367"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2507296"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2516278"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2516412"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2516674"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2521419"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2532407"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2536264"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2559811"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:95367"
    }
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Important: kernel security update",
  "upstream": [
    "CVE-2026-64378",
    "CVE-2026-72080",
    "CVE-2026-72221",
    "CVE-2026-72222",
    "CVE-2026-74586",
    "CVE-2026-89488",
    "CVE-2026-90315",
    "CVE-2026-98974"
  ]
}



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