rlsa-2026:47017
Vulnerability from osv_rocky
Published
2026-07-29 18:06
Modified
2026-07-29 18:08
Summary
Important: kernel security, bug fix, and enhancement update
Details

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

Security Fix(es):

  • kernel: net: bridge: use a stable FDB dst snapshot in RCU readers (CVE-2026-46086)

  • kernel: ipv6: fix possible UAF in icmpv6_rcv() (CVE-2026-53006)

  • kernel: tipc: fix double-free in tipc_buf_append() (CVE-2026-52993)

  • kernel: iommu/vt-d: Avoid NULL pointer dereference or refcount corruption (CVE-2026-53281)

Bug Fix(es) and Enhancement(s):

  • rxrpc: Address CVE-2026-43500 [rhel-10.2.z] (JIRA:Rocky Linux-178254)

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
7.0 (High)
CVSS:3.1/AV:L/AC:H/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: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": "0:6.12.0-211.40.1.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: net: bridge: use a stable FDB dst snapshot in RCU readers (CVE-2026-46086)\n\n* kernel: ipv6: fix possible UAF in icmpv6_rcv() (CVE-2026-53006)\n\n* kernel: tipc: fix double-free in tipc_buf_append() (CVE-2026-52993)\n\n* kernel: iommu/vt-d: Avoid NULL pointer dereference or refcount corruption (CVE-2026-53281)\n\nBug Fix(es) and Enhancement(s):\n\n* rxrpc: Address CVE-2026-43500 [rhel-10.2.z] (JIRA:Rocky Linux-178254)\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-2026:47017",
  "modified": "2026-07-29T18:08:26.377144Z",
  "published": "2026-07-29T18:06:20.508719Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://errata.rockylinux.org/RLSA-2026:47017"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2481989"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2493728"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492363"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492437"
    }
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Important: kernel security, bug fix, and enhancement update",
  "upstream": [
    "CVE-2026-46086",
    "CVE-2026-52993",
    "CVE-2026-53006",
    "CVE-2026-53281"
  ]
}



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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

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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.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.