rlsa-2026:27354
Vulnerability from osv_rocky
Published
2026-06-22 06:00
Modified
2026-07-06 06:06
Summary
Important: kernel-rt security, bug fix, and enhancement 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: Linux kernel: Use-after-free in bonding driver leads to denial of service (CVE-2026-31419)

  • kernel: drm/amd/display: Do not skip unrelated mode changes in DSC validation (CVE-2026-31488)

  • kernel: net: mana: fix use-after-free in add_adev() error path (CVE-2026-43056)

  • kernel: ALSA: usb-audio: Add sanity check for OOB writes at silencing (CVE-2026-43279)

  • kernel: net/sched: act_pedit: extend the writable skb range per key (CVE-2026-46331)

  • kernel: ALSA: aloop: Fix peer runtime UAF during format-change stop (CVE-2026-46090)

  • kernel: RDMA/mana: Validate rx_hash_key_len (CVE-2026-46145)

  • kernel: nvmet-tcp: fix race between ICReq handling and queue teardown (CVE-2026-46135)

Bug Fix(es) and Enhancement(s):

  • Rocky Linux8 RT kernel panic in replenish_dl_entity() caused by stale DEADLINE PI state during rt_mutex de-boosting (JIRA:Rocky Linux-178520)

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
7.8 (High)
CVSS:3.1/AV:L/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:8",
        "name": "kernel-rt",
        "purl": "pkg:rpm/rocky-linux/kernel-rt?distro=rocky-linux-8\u0026epoch=0"
      },
      "ranges": [
        {
          "database_specific": {
            "yum_repository": "NFV"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:4.18.0-553.136.1.rt7.477.el8_10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "credits": [
    {
      "name": "Rocky Enterprise Software Foundation"
    },
    {
      "name": "Red Hat"
    }
  ],
  "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: Linux kernel: Use-after-free in bonding driver leads to denial of service (CVE-2026-31419)\n\n* kernel: drm/amd/display: Do not skip unrelated mode changes in DSC validation (CVE-2026-31488)\n\n* kernel: net: mana: fix use-after-free in add_adev() error path (CVE-2026-43056)\n\n* kernel: ALSA: usb-audio: Add sanity check for OOB writes at silencing (CVE-2026-43279)\n\n* kernel: net/sched: act_pedit: extend the writable skb range per key (CVE-2026-46331)\n\n* kernel: ALSA: aloop: Fix peer runtime UAF during format-change stop (CVE-2026-46090)\n\n* kernel: RDMA/mana: Validate rx_hash_key_len (CVE-2026-46145)\n\n* kernel: nvmet-tcp: fix race between ICReq handling and queue teardown (CVE-2026-46135)\n\nBug Fix(es) and Enhancement(s):\n\n* Rocky Linux8 RT kernel panic in replenish_dl_entity() caused by stale DEADLINE PI state during rt_mutex de-boosting (JIRA:Rocky Linux-178520)\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-2026:27354",
  "modified": "2026-07-06T06:06:16.765929Z",
  "published": "2026-06-22T06:00:57.876785Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://errata.rockylinux.org/RLSA-2026:27354"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2457829"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2460619"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2464449"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467215"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2479492"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2481980"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482581"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482654"
    }
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Important: kernel-rt security, bug fix, and enhancement update",
  "upstream": [
    "CVE-2026-31419",
    "CVE-2026-31488",
    "CVE-2026-43056",
    "CVE-2026-43279",
    "CVE-2026-46090",
    "CVE-2026-46135",
    "CVE-2026-46145",
    "CVE-2026-46331"
  ]
}



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