alsa-2026:13566
Vulnerability from osv_almalinux
Published
2026-05-04 00:00
Modified
2026-05-06 23:00
Summary
Important: kernel security update
Details

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

Security Fix(es):

  • kernel: Linux kernel: Use-after-free in traffic control (act_ct) may lead to denial of service or privilege escalation (CVE-2026-23270)
  • kernel: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache (CVE-2026-31402)
  • kernel: Linux kernel: Use-after-free in bonding driver leads to denial of service (CVE-2026-31419)
  • kernel: crypto: algif_aead - Revert to operating out-of-place (CVE-2026-31431)

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.

References
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "AlmaLinux:10",
        "name": "kernel-abi-stablelists"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.12.0-124.55.1.el10_1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:10",
        "name": "kernel-doc"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.12.0-124.55.1.el10_1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "The kernel packages contain the Linux kernel, the core of any Linux operating system.  \n\nSecurity Fix(es):  \n\n  * kernel: Linux kernel: Use-after-free in traffic control (act_ct) may lead to denial of service or privilege escalation (CVE-2026-23270)\n  * kernel: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache (CVE-2026-31402)\n  * kernel: Linux kernel: Use-after-free in bonding driver leads to denial of service (CVE-2026-31419)\n  * kernel: crypto: algif_aead - Revert to operating out-of-place (CVE-2026-31431)\n\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.\n",
  "id": "ALSA-2026:13566",
  "modified": "2026-05-06T23:00:34Z",
  "published": "2026-05-04T00:00:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:13566"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-23270"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-31402"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-31419"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-31431"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2448745"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2454844"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2457829"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2460538"
    },
    {
      "type": "ADVISORY",
      "url": "https://errata.almalinux.org/10/ALSA-2026-13566.html"
    }
  ],
  "related": [
    "CVE-2026-23270",
    "CVE-2026-31402",
    "CVE-2026-31419",
    "CVE-2026-31431"
  ],
  "summary": "Important: kernel security update"
}


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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.
  • 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.