rlsa-2026:26427
Vulnerability from osv_rocky
Published
2026-06-19 00:00
Modified
2026-07-03 00:06
Summary
Important: kernel security update
Details

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

Security Fix(es):

  • kernel: mptcp: fix slab-use-after-free in __inet_lookup_established (CVE-2026-31669)

  • kernel: xen/privcmd: fix double free via VMA splitting (CVE-2026-31787)

  • kernel: Buffer overflow in drivers/xen/sys-hypervisor.c (CVE-2026-31786)

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

  • kernel: netfilter: flowtable: strictly check for maximum number of actions (CVE-2026-43329)

  • kernel: Bluetooth: hci_event: fix potential UAF in SSP passkey handlers (CVE-2026-46056)

  • kernel: wifi: mac80211: drop stray 'static' from fast-RX rx_result (CVE-2026-46152)

  • kernel: wifi: mac80211: remove station if connection prep fails (CVE-2026-46125)

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",
        "purl": "pkg:rpm/rocky-linux/kernel?distro=rocky-linux-8\u0026epoch=0"
      },
      "ranges": [
        {
          "database_specific": {
            "yum_repository": "BaseOS"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:4.18.0-553.134.1.el8_10"
            }
          ],
          "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: mptcp: fix slab-use-after-free in __inet_lookup_established (CVE-2026-31669)\n\n* kernel: xen/privcmd: fix double free via VMA splitting (CVE-2026-31787)\n\n* kernel: Buffer overflow in drivers/xen/sys-hypervisor.c (CVE-2026-31786)\n\n* kernel: wifi: brcmfmac: validate bsscfg indices in IF events (CVE-2026-43110)\n\n* kernel: netfilter: flowtable: strictly check for maximum number of actions (CVE-2026-43329)\n\n* kernel: Bluetooth: hci_event: fix potential UAF in SSP passkey handlers (CVE-2026-46056)\n\n* kernel: wifi: mac80211: drop stray \u0027static\u0027 from fast-RX rx_result (CVE-2026-46152)\n\n* kernel: wifi: mac80211: remove station if connection prep fails (CVE-2026-46125)\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-2026:26427",
  "modified": "2026-07-03T00:06:09.721732Z",
  "published": "2026-06-19T00:00:43.922159Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://errata.rockylinux.org/RLSA-2026:26427"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2461503"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2464092"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2464096"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467014"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2468124"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482181"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482563"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482608"
    }
  ],
  "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-2026-31669",
    "CVE-2026-31786",
    "CVE-2026-31787",
    "CVE-2026-43110",
    "CVE-2026-43329",
    "CVE-2026-46056",
    "CVE-2026-46125",
    "CVE-2026-46152"
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.