{
  "cveId": "CVE-2026-80777",
  "url": "https://patchblox.com/security/cve/CVE-2026-80777",
  "summary": "CVE-2026-80777 is fixed in 20 products on 1 platform, first by DEBIAN-CVE-2026-80777, released September 5, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  futex/pi: Plug private futex exec() race  The ch...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  futex/pi: Plug private futex exec() race  The check for private futexes whether the waiter\u0027s mm, which is stored in the futex_key and copied into the pi_state, is the same as the owner\u0027s mm is not sufficient for exec(). exec() has a gap where the mm check fails to give the correct answer:    exec()   ...     exec_release_mm()       futex_exec_release()         tsk::futex::exit_state = EXITING;         cleanup_robust_list(); 1)      tsk::futex::exit_state = OK;     ...     old_mm = tsk::mm; 2)  tsk::mm = -\u003Emm;  Between #1 and #2 the check for the mm is wrong as that mm is about to be swapped out and eventually freed.  Plug this gap by:    1) Setting tsk::futex::exit_state to FUTEX_STATE_DEAD in      futex_exec_release()    2) Setting tsk::futex::exit_state to FUTEX_STATE_OK after      the mm has been switched.  From a futex point of view the task is dead after it finished the robust list cleanup up to the point where it sets the state to OK again.",
  "published": "2026-09-04T16:18:03Z",
  "severity": "important",
  "epss": 0.00209,
  "epssPercentile": 0.11083,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "bpftool6.18",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.48-107.148.amzn2023",
      "fix": "ALAS2023-2026-3139",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3139",
      "released": "2026-09-28T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "bpftool6.18-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.48-107.148.amzn2023",
      "fix": "ALAS2023-2026-3139",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3139",
      "released": "2026-09-28T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel-livepatch-6.18.48-107.148",
      "release": "amzn 2023",
      "fixedVersion": "1:1.0-0.amzn2023",
      "fix": "ALAS2023-2026-3139",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3139",
      "released": "2026-09-28T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.48-107.148.amzn2023",
      "fix": "ALAS2023-2026-3139",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3139",
      "released": "2026-09-28T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.48-107.148.amzn2023",
      "fix": "ALAS2023-2026-3139",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3139",
      "released": "2026-09-28T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-debuginfo-common-aarch64",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.48-107.148.amzn2023",
      "fix": "ALAS2023-2026-3139",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3139",
      "released": "2026-09-28T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-debuginfo-common-x86_64",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.48-107.148.amzn2023",
      "fix": "ALAS2023-2026-3139",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3139",
      "released": "2026-09-28T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-devel",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.48-107.148.amzn2023",
      "fix": "ALAS2023-2026-3139",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3139",
      "released": "2026-09-28T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-headers",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.48-107.148.amzn2023",
      "fix": "ALAS2023-2026-3139",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3139",
      "released": "2026-09-28T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-modules-extra",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.48-107.148.amzn2023",
      "fix": "ALAS2023-2026-3139",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3139",
      "released": "2026-09-28T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-modules-extra-common",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.48-107.148.amzn2023",
      "fix": "ALAS2023-2026-3139",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3139",
      "released": "2026-09-28T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-tools",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.48-107.148.amzn2023",
      "fix": "ALAS2023-2026-3139",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3139",
      "released": "2026-09-28T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-tools-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.48-107.148.amzn2023",
      "fix": "ALAS2023-2026-3139",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3139",
      "released": "2026-09-28T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "kernel6.18-tools-devel",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.48-107.148.amzn2023",
      "fix": "ALAS2023-2026-3139",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3139",
      "released": "2026-09-28T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.1.12-1",
      "fix": "DEBIAN-CVE-2026-80777",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-80777",
      "released": "2026-09-05T01:57:10Z"
    },
    {
      "platform": "linux",
      "product": "microvm-kernel6.18",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.48-107.148.amzn2023",
      "fix": "ALAS2023-2026-3139",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3139",
      "released": "2026-09-28T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "perf6.18",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.48-107.148.amzn2023",
      "fix": "ALAS2023-2026-3139",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3139",
      "released": "2026-09-28T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "perf6.18-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.48-107.148.amzn2023",
      "fix": "ALAS2023-2026-3139",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3139",
      "released": "2026-09-28T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-perf6.18",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.48-107.148.amzn2023",
      "fix": "ALAS2023-2026-3139",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3139",
      "released": "2026-09-28T09:00:00Z"
    },
    {
      "platform": "linux",
      "product": "python3-perf6.18-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "1:6.18.48-107.148.amzn2023",
      "fix": "ALAS2023-2026-3139",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2026-3139",
      "released": "2026-09-28T09:00:00Z"
    }
  ],
  "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"
  }
}