{
  "cveId": "CVE-2026-23416",
  "url": "https://patchblox.com/security/cve/CVE-2026-23416",
  "summary": "CVE-2026-23416 is fixed in 19 products on 1 platform, first by DEBIAN-CVE-2026-23416, released April 2, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  mm/mseal: update VMA end correctly on merge  Pre...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  mm/mseal: update VMA end correctly on merge  Previously we stored the end of the current VMA in curr_end, and then upon iterating to the next VMA updated curr_start to curr_end to advance to the next VMA.  However, this doesn\u0027t take into account the fact that a VMA might be updated due to a merge by vma_modify_flags(), which can result in curr_end being stale and thus, upon setting curr_start to curr_end, ending up with an incorrect curr_start on the next iteration.  Resolve the issue by setting curr_end to vma-\u003Evm_end unconditionally to ensure this value remains updated should this occur.  While we\u0027re here, eliminate this entire class of bug by simply setting const curr_[start/end] to be clamped to the input range and VMAs, which also happens to simplify the logic.",
  "published": "2026-04-02T12:16:20Z",
  "severity": "medium",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00222,
  "epssPercentile": 0.12844,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "bpftool6.18",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.25-52.107.amzn2023",
      "fix": "ALAS2023-2026-1746",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1746",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "bpftool6.18-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.25-52.107.amzn2023",
      "fix": "ALAS2023-2026-1746",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1746",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-livepatch-6.18.25-52.107",
      "release": "amzn 2023",
      "fixedVersion": "1:1.0-0.amzn2023",
      "fix": "ALAS2023-2026-1746",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1746",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.25-52.107.amzn2023",
      "fix": "ALAS2023-2026-1746",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1746",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.25-52.107.amzn2023",
      "fix": "ALAS2023-2026-1746",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1746",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-debuginfo-common-aarch64",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.25-52.107.amzn2023",
      "fix": "ALAS2023-2026-1746",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1746",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-debuginfo-common-x86_64",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.25-52.107.amzn2023",
      "fix": "ALAS2023-2026-1746",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1746",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-devel",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.25-52.107.amzn2023",
      "fix": "ALAS2023-2026-1746",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1746",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-headers",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.25-52.107.amzn2023",
      "fix": "ALAS2023-2026-1746",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1746",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-modules-extra",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.25-52.107.amzn2023",
      "fix": "ALAS2023-2026-1746",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1746",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-modules-extra-common",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.25-52.107.amzn2023",
      "fix": "ALAS2023-2026-1746",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1746",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-tools",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.25-52.107.amzn2023",
      "fix": "ALAS2023-2026-1746",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1746",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-tools-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.25-52.107.amzn2023",
      "fix": "ALAS2023-2026-1746",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1746",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-tools-devel",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.25-52.107.amzn2023",
      "fix": "ALAS2023-2026-1746",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1746",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.19.11-1",
      "fix": "DEBIAN-CVE-2026-23416",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-23416",
      "released": "2026-04-02T12:16:20Z"
    },
    {
      "platform": "linux",
      "product": "perf6.18",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.25-52.107.amzn2023",
      "fix": "ALAS2023-2026-1746",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1746",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "perf6.18-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.25-52.107.amzn2023",
      "fix": "ALAS2023-2026-1746",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1746",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-perf6.18",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.25-52.107.amzn2023",
      "fix": "ALAS2023-2026-1746",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1746",
      "released": "2026-05-25T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-perf6.18-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.25-52.107.amzn2023",
      "fix": "ALAS2023-2026-1746",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-1746",
      "released": "2026-05-25T09:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T07:25:28Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}