ALSA-2026:72467

Vulnerability from osv_almalinux – Published: 2026-09-28 00:00 – Updated: 2026-09-28 16:20 – Source website
VLAI
Summary
Important: kernel-rt security update
Details

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

  • kernel: fbcon: Set fb_display[i]->mode to NULL when the mode is released (CVE-2025-40323)
  • kernel: ext4: fix e4b bitmap inconsistency reports (CVE-2026-45942)
  • kernel: drm/amdgpu/vcn3: Prevent OOB reads when parsing dec msg (CVE-2026-46230)
  • kernel: drm/amdgpu/vcn4: Prevent OOB reads when parsing IB (CVE-2026-46204)
  • kernel: drm/amdgpu/vcn4: Prevent OOB reads when parsing dec msg (CVE-2026-46199)
  • kernel: arm64: tlb: Flush walk cache when unsharing PMD tables (CVE-2026-63875)
  • kernel: net: mana: Fix TOCTOU double-fetch of hwc_msg_id from DMA buffer (CVE-2026-64034)
  • kernel: perf/core: Detach event groups during remove_on_exec (CVE-2026-64556)
  • kernel: Linux kernel: libceph stack out-of-bounds write via crafted OSDMap (CVE-2026-68159)
  • kernel: libceph: refresh auth->authorizer_buf{,_len} after authorizer update (CVE-2026-68156)
  • kernel: Linux kernel (libceph): Denial of Service due to malformed monitor maps (CVE-2026-68155)
  • kernel: drm/amdgpu: Fix context pstate override handling (CVE-2026-68273)
  • kernel: perf: Reject exited events as group leaders (CVE-2026-74753)

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.

References
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "AlmaLinux:8",
        "name": "kernel-rt"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.18.0-553.169.1.rt7.510.el8_10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:8",
        "name": "kernel-rt-core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.18.0-553.169.1.rt7.510.el8_10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:8",
        "name": "kernel-rt-debug"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.18.0-553.169.1.rt7.510.el8_10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:8",
        "name": "kernel-rt-debug-core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.18.0-553.169.1.rt7.510.el8_10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:8",
        "name": "kernel-rt-debug-devel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.18.0-553.169.1.rt7.510.el8_10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:8",
        "name": "kernel-rt-debug-modules"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.18.0-553.169.1.rt7.510.el8_10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:8",
        "name": "kernel-rt-debug-modules-extra"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.18.0-553.169.1.rt7.510.el8_10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:8",
        "name": "kernel-rt-devel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.18.0-553.169.1.rt7.510.el8_10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:8",
        "name": "kernel-rt-modules"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.18.0-553.169.1.rt7.510.el8_10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:8",
        "name": "kernel-rt-modules-extra"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.18.0-553.169.1.rt7.510.el8_10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.  \n\nSecurity Fix(es):  \n\n  * kernel: fbcon: Set fb_display[i]-\u003emode to NULL when the mode is released (CVE-2025-40323)\n  * kernel: ext4: fix e4b bitmap inconsistency reports (CVE-2026-45942)\n  * kernel: drm/amdgpu/vcn3: Prevent OOB reads when parsing dec msg (CVE-2026-46230)\n  * kernel: drm/amdgpu/vcn4: Prevent OOB reads when parsing IB (CVE-2026-46204)\n  * kernel: drm/amdgpu/vcn4: Prevent OOB reads when parsing dec msg (CVE-2026-46199)\n  * kernel: arm64: tlb: Flush walk cache when unsharing PMD tables (CVE-2026-63875)\n  * kernel: net: mana: Fix TOCTOU double-fetch of hwc_msg_id from DMA buffer (CVE-2026-64034)\n  * kernel: perf/core: Detach event groups during remove_on_exec (CVE-2026-64556)\n  * kernel: Linux kernel: libceph stack out-of-bounds write via crafted OSDMap (CVE-2026-68159)\n  * kernel: libceph: refresh auth-\u003eauthorizer_buf{,_len} after authorizer update (CVE-2026-68156)\n  * kernel: Linux kernel (libceph): Denial of Service due to malformed monitor maps (CVE-2026-68155)\n  * kernel: drm/amdgpu: Fix context pstate override handling (CVE-2026-68273)\n  * kernel: perf: Reject exited events as group leaders (CVE-2026-74753)\n\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.\n",
  "id": "ALSA-2026:72467",
  "modified": "2026-09-28T16:20:44Z",
  "published": "2026-09-28T00:00:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:72467"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2025-40323"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-45942"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-46199"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-46204"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-46230"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-63875"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-64034"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-64556"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-68155"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-68156"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-68159"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-68273"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-74753"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2419883"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2482104"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2482533"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2482543"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2482649"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2502318"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2502394"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2508319"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2513165"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2513232"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2513295"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2513434"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2524434"
    },
    {
      "type": "ADVISORY",
      "url": "https://errata.almalinux.org/8/ALSA-2026-72467.html"
    }
  ],
  "related": [
    "CVE-2025-40323",
    "CVE-2026-45942",
    "CVE-2026-46230",
    "CVE-2026-46204",
    "CVE-2026-46199",
    "CVE-2026-63875",
    "CVE-2026-64034",
    "CVE-2026-64556",
    "CVE-2026-68159",
    "CVE-2026-68156",
    "CVE-2026-68155",
    "CVE-2026-68273",
    "CVE-2026-74753"
  ],
  "summary": "Important: kernel-rt security update"
}



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