RLSA-2026:21557 (CVE-2024-56645)

Vulnerability from osv_rocky – Published: 2026-06-04 12:04 – Updated: 2026-06-18 12:06 – 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: can: j1939: j1939_session_new(): fix skb reference counting (CVE-2024-56645)

  • kernel: ima: don't clear IMA_DIGSIG flag when setting or removing non-IMA xattr (CVE-2025-68183)

  • kernel: mm: thp: deny THP for files on anonymous inodes (CVE-2026-23375)

  • kernel: netfilter: nf_tables: release flowtable after rcu grace period on error (CVE-2026-23392)

  • kernel: netfilter: nf_conntrack_h323: check for zero length in DecodeQ931() (CVE-2026-23455)

  • kernel: net: sched: act_csum: validate nested VLAN headers (CVE-2026-31684)

  • kernel: netfilter: ip6t_eui64: reject invalid MAC header for all packets (CVE-2026-31685)

  • kernel: netfilter: nf_conntrack_helper: pass helper to expect cleanup (CVE-2026-43027)

  • kernel: io_uring/rsrc: reject zero-length fixed buffer import (CVE-2026-43006)

  • kernel: Bluetooth: MGMT: validate LTK enc_size on load (CVE-2026-43020)

  • kernel: HID: wacom: fix out-of-bounds read in wacom_intuos_bt_irq (CVE-2026-43051)

  • kernel: Bluetooth: SCO: fix race conditions in sco_sock_connect() (CVE-2026-43023)

  • kernel: netfilter: ctnetlink: ensure safe access to master conntrack (CVE-2026-43116)

  • kernel: wifi: brcmfmac: validate bsscfg indices in IF events (CVE-2026-43110)

  • kernel: netfilter: xt_tcpmss: check remaining length before reading optlen (CVE-2026-43190)

  • kernel: Linux kernel dpaa2-switch: Kernel memory corruption via out-of-bounds write (CVE-2026-43205)

  • kernel: xfs: fix freemap adjustments when adding xattrs to leaf blocks (CVE-2026-43158)

  • kernel: mm/page_alloc: clear page->private in free_pages_prepare() (CVE-2026-43303)

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
7.5 (High)
CVSS:3.1/AV:A/AC:H/PR:N/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": "0:6.12.0-211.18.1.el10_2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "credits": [
    {
      "name": "Rocky Enterprise Software Foundation"
    },
    {
      "name": "Red Hat"
    }
  ],
  "details": "The kernel packages contain the Linux kernel, the core of any Linux operating system.\n\nSecurity Fix(es):\n\n* kernel: can: j1939: j1939_session_new(): fix skb reference counting (CVE-2024-56645)\n\n* kernel: ima: don\u0027t clear IMA_DIGSIG flag when setting or removing non-IMA xattr (CVE-2025-68183)\n\n* kernel: mm: thp: deny THP for files on anonymous inodes (CVE-2026-23375)\n\n* kernel: netfilter: nf_tables: release flowtable after rcu grace period on error (CVE-2026-23392)\n\n* kernel: netfilter: nf_conntrack_h323: check for zero length in DecodeQ931() (CVE-2026-23455)\n\n* kernel: net: sched: act_csum: validate nested VLAN headers (CVE-2026-31684)\n\n* kernel: netfilter: ip6t_eui64: reject invalid MAC header for all packets (CVE-2026-31685)\n\n* kernel: netfilter: nf_conntrack_helper: pass helper to expect cleanup (CVE-2026-43027)\n\n* kernel: io_uring/rsrc: reject zero-length fixed buffer import (CVE-2026-43006)\n\n* kernel: Bluetooth: MGMT: validate LTK enc_size on load (CVE-2026-43020)\n\n* kernel: HID: wacom: fix out-of-bounds read in wacom_intuos_bt_irq (CVE-2026-43051)\n\n* kernel: Bluetooth: SCO: fix race conditions in sco_sock_connect() (CVE-2026-43023)\n\n* kernel: netfilter: ctnetlink: ensure safe access to master conntrack (CVE-2026-43116)\n\n* kernel: wifi: brcmfmac: validate bsscfg indices in IF events (CVE-2026-43110)\n\n* kernel: netfilter: xt_tcpmss: check remaining length before reading optlen (CVE-2026-43190)\n\n* kernel: Linux kernel dpaa2-switch: Kernel memory corruption via out-of-bounds write (CVE-2026-43205)\n\n* kernel: xfs: fix freemap adjustments when adding xattrs to leaf blocks (CVE-2026-43158)\n\n* kernel: mm/page_alloc: clear page-\u003eprivate in free_pages_prepare() (CVE-2026-43303)\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-2026:21557",
  "modified": "2026-06-18T12:06:11.954646Z",
  "published": "2026-06-04T12:04:37.164871Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://errata.rockylinux.org/RLSA-2026:21557"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2464455"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2454810"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467090"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467210"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467005"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2468091"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2422699"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2461757"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2464402"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2464462"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2464369"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467014"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2451218"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467064"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2451199"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2461759"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2334560"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2464496"
    }
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Important: kernel security update",
  "upstream": [
    "CVE-2024-56645",
    "CVE-2025-68183",
    "CVE-2026-23375",
    "CVE-2026-23392",
    "CVE-2026-23455",
    "CVE-2026-31684",
    "CVE-2026-31685",
    "CVE-2026-43006",
    "CVE-2026-43020",
    "CVE-2026-43023",
    "CVE-2026-43027",
    "CVE-2026-43051",
    "CVE-2026-43110",
    "CVE-2026-43116",
    "CVE-2026-43158",
    "CVE-2026-43190",
    "CVE-2026-43205",
    "CVE-2026-43303"
  ]
}



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