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rlsa-2026:21556
Vulnerability from osv_rocky
Published
2026-05-30 18:03
Modified
2026-06-13 18:05
Summary
Important: kernel security update
Details

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

Security Fix(es):

  • kernel: proc: use the same treatment to check proc_lseek as ones for proc_read_iter et.al (CVE-2025-38653)

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

  • kernel: nbd: defer config unlock in nbd_genl_connect (CVE-2025-68366)

  • kernel: crypto: asymmetric_keys - prevent overflow in asymmetric_key_generate_id (CVE-2025-68724)

  • kernel: iommu: disable SVA when CONFIG_X86 is set (CVE-2025-71089)

  • 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: Bluetooth: SCO: Fix use-after-free in sco_recv_frame() due to missing sock_hold (CVE-2026-31408)

  • 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: 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: smb: client: validate the whole DACL before rewriting it in cifsacl (CVE-2026-31709)

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

  • 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: 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
7.8 (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:9",
        "name": "kernel",
        "purl": "pkg:rpm/rocky-linux/kernel?distro=rocky-linux-9\u0026epoch=0"
      },
      "ranges": [
        {
          "database_specific": {
            "yum_repository": "BaseOS"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:5.14.0-687.12.1.el9_8"
            }
          ],
          "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: proc: use the same treatment to check proc_lseek as ones for proc_read_iter et.al (CVE-2025-38653)\n\n* kernel: ima: don\u0027t clear IMA_DIGSIG flag when setting or removing non-IMA xattr (CVE-2025-68183)\n\n* kernel: nbd: defer config unlock in nbd_genl_connect (CVE-2025-68366)\n\n* kernel: crypto: asymmetric_keys - prevent overflow in asymmetric_key_generate_id (CVE-2025-68724)\n\n* kernel: iommu: disable SVA when CONFIG_X86 is set (CVE-2025-71089)\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: Bluetooth: SCO: Fix use-after-free in sco_recv_frame() due to missing sock_hold (CVE-2026-31408)\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: 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: smb: client: validate the whole DACL before rewriting it in cifsacl (CVE-2026-31709)\n\n* kernel: Bluetooth: SCO: fix race conditions in sco_sock_connect() (CVE-2026-43023)\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: 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-2026:21556",
  "modified": "2026-06-13T18:05:49.158132Z",
  "published": "2026-05-30T18:03:01.190443Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://errata.rockylinux.org/RLSA-2026:21556"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2390372"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2422699"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2424881"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2424886"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2429104"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2451218"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2454810"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2455334"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2461757"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2461759"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2464369"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2464455"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2464462"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2464476"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2464496"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467014"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467064"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467210"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2468091"
    }
  ],
  "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 security update",
  "upstream": [
    "CVE-2025-38653",
    "CVE-2025-68183",
    "CVE-2025-68366",
    "CVE-2025-68724",
    "CVE-2025-71089",
    "CVE-2026-23392",
    "CVE-2026-23455",
    "CVE-2026-31408",
    "CVE-2026-31684",
    "CVE-2026-31685",
    "CVE-2026-31709",
    "CVE-2026-43020",
    "CVE-2026-43023",
    "CVE-2026-43027",
    "CVE-2026-43051",
    "CVE-2026-43110",
    "CVE-2026-43158",
    "CVE-2026-43190",
    "CVE-2026-43303"
  ]
}



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