{
  "cveId": "CVE-2024-26689",
  "url": "https://patchblox.com/security/cve/CVE-2024-26689",
  "summary": "CVE-2024-26689 is fixed in 22 products on 1 platform, first by ALAS2023-2024-549, released February 29, 2024. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  ceph: prevent use-after-free in encode_cap_msg()...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  ceph: prevent use-after-free in encode_cap_msg()  In fs/ceph/caps.c, in encode_cap_msg(), \u0022use after free\u0022 error was caught by KASAN at this line - \u0027ceph_buffer_get(arg-\u003Exattr_buf);\u0027. This implies before the refcount could be increment here, it was freed.  In same file, in \u0022handle_cap_grant()\u0022 refcount is decremented by this line - \u0027ceph_buffer_put(ci-\u003Ei_xattrs.blob);\u0027. It appears that a race occurred and resource was freed by the latter line before the former line could increment it.  encode_cap_msg() is called by __send_cap() and __send_cap() is called by ceph_check_caps() after calling __prep_cap(). __prep_cap() is where arg-\u003Exattr_buf is assigned to ci-\u003Ei_xattrs.blob. This is the spot where the refcount must be increased to prevent \u0022use after free\u0022 error.",
  "published": "2024-02-29T10:29:00Z",
  "severity": "high",
  "cvss": 7.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.00702,
  "epssPercentile": 0.53503,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "bpftool",
      "release": "amzn 2023",
      "fixedVersion": "6.1.79-99.164.amzn2023",
      "fix": "ALAS2023-2024-549",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2024-549",
      "released": "2024-02-29T10:29:00Z"
    },
    {
      "platform": "linux",
      "product": "bpftool-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "6.1.79-99.164.amzn2023",
      "fix": "ALAS2023-2024-549",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2024-549",
      "released": "2024-02-29T10:29:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel",
      "release": "amzn 2023",
      "fixedVersion": "6.1.79-99.164.amzn2023",
      "fix": "ALAS2023-2024-549",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2024-549",
      "released": "2024-02-29T10:29:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "6.1.79-99.164.amzn2023",
      "fix": "ALAS2023-2024-549",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2024-549",
      "released": "2024-02-29T10:29:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-debuginfo-common-aarch64",
      "release": "amzn 2023",
      "fixedVersion": "6.1.79-99.164.amzn2023",
      "fix": "ALAS2023-2024-549",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2024-549",
      "released": "2024-02-29T10:29:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-debuginfo-common-x86_64",
      "release": "amzn 2023",
      "fixedVersion": "6.1.79-99.164.amzn2023",
      "fix": "ALAS2023-2024-549",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2024-549",
      "released": "2024-02-29T10:29:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-devel",
      "release": "amzn 2023",
      "fixedVersion": "6.1.79-99.164.amzn2023",
      "fix": "ALAS2023-2024-549",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2024-549",
      "released": "2024-02-29T10:29:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-headers",
      "release": "amzn 2023",
      "fixedVersion": "6.1.79-99.164.amzn2023",
      "fix": "ALAS2023-2024-549",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2024-549",
      "released": "2024-02-29T10:29:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-libbpf",
      "release": "amzn 2023",
      "fixedVersion": "6.1.79-99.164.amzn2023",
      "fix": "ALAS2023-2024-549",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2024-549",
      "released": "2024-02-29T10:29:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-libbpf-devel",
      "release": "amzn 2023",
      "fixedVersion": "6.1.79-99.164.amzn2023",
      "fix": "ALAS2023-2024-549",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2024-549",
      "released": "2024-02-29T10:29:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-libbpf-static",
      "release": "amzn 2023",
      "fixedVersion": "6.1.79-99.164.amzn2023",
      "fix": "ALAS2023-2024-549",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2024-549",
      "released": "2024-02-29T10:29:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-livepatch-6.1.79-99.164",
      "release": "amzn 2023",
      "fixedVersion": "1.0-0.amzn2023",
      "fix": "ALAS2023-2024-549",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2024-549",
      "released": "2024-02-29T10:29:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-modules-extra",
      "release": "amzn 2023",
      "fixedVersion": "6.1.79-99.164.amzn2023",
      "fix": "ALAS2023-2024-549",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2024-549",
      "released": "2024-02-29T10:29:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-modules-extra-common",
      "release": "amzn 2023",
      "fixedVersion": "6.1.79-99.164.amzn2023",
      "fix": "ALAS2023-2024-549",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2024-549",
      "released": "2024-02-29T10:29:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-tools",
      "release": "amzn 2023",
      "fixedVersion": "6.1.79-99.164.amzn2023",
      "fix": "ALAS2023-2024-549",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2024-549",
      "released": "2024-02-29T10:29:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-tools-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "6.1.79-99.164.amzn2023",
      "fix": "ALAS2023-2024-549",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2024-549",
      "released": "2024-02-29T10:29:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-tools-devel",
      "release": "amzn 2023",
      "fixedVersion": "6.1.79-99.164.amzn2023",
      "fix": "ALAS2023-2024-549",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2024-549",
      "released": "2024-02-29T10:29:00Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.1.82-1",
      "fix": "DEBIAN-CVE-2024-26689",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2024-26689",
      "released": "2024-04-03T15:15:52Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.7.7-1",
      "fix": "DEBIAN-CVE-2024-26689",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2024-26689",
      "released": "2024-04-03T15:15:52Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.7.7-1",
      "fix": "DEBIAN-CVE-2024-26689",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2024-26689",
      "released": "2024-04-03T15:15:52Z"
    },
    {
      "platform": "linux",
      "product": "perf",
      "release": "amzn 2023",
      "fixedVersion": "6.1.79-99.164.amzn2023",
      "fix": "ALAS2023-2024-549",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2024-549",
      "released": "2024-02-29T10:29:00Z"
    },
    {
      "platform": "linux",
      "product": "perf-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "6.1.79-99.164.amzn2023",
      "fix": "ALAS2023-2024-549",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2024-549",
      "released": "2024-02-29T10:29:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-perf",
      "release": "amzn 2023",
      "fixedVersion": "6.1.79-99.164.amzn2023",
      "fix": "ALAS2023-2024-549",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2024-549",
      "released": "2024-02-29T10:29:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-perf-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "6.1.79-99.164.amzn2023",
      "fix": "ALAS2023-2024-549",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2024-549",
      "released": "2024-02-29T10:29:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T19:12:23Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}