{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "0c7fca880a40a209a9c92be14143996d14b93ff6"
            },
            {
              "fixed": "a8bbb2a60513bf322170903c21462f0bf4f62be2"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "204aa22a686bfee48daca7db620c1e017615f2ff"
            },
            {
              "fixed": "715cb86e33cda43f5224cdc3fd5610c0b6a46f7a"
            },
            {
              "fixed": "64b0b5cacbd2fea88001464cb712c9dfc795b26e"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "300e812b882a174dca675d8028684001ad5826bc"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "6.18.25"
            },
            {
              "fixed": "6.18.50"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "7.0.2"
            },
            {
              "fixed": "7.1"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.18.50"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80857.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nfuse: wait for FR_FINISHED on abort_on_kill to prevent use-after-free\n\nThe abort_on_kill path in request_wait_answer() calls fuse_abort_conn()\nand returns without waiting for FR_FINISHED.  If fuse_dev_do_write() is\nconcurrently processing the same request (FR_LOCKED set), the caller\nfrees req-\u003eargs while it is still being accessed, causing a\nuse-after-free.\n\nFix this by jumping to the existing wait_event(FR_FINISHED) instead of\nreturning early.  The wait will not hang because fuse_abort_conn()\nensures all requests are ended.",
  "id": "CVE-2026-80857",
  "modified": "2026-09-08T03:30:21.553064196Z",
  "published": "2026-09-04T15:55:10.641Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/64b0b5cacbd2fea88001464cb712c9dfc795b26e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/715cb86e33cda43f5224cdc3fd5610c0b6a46f7a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a8bbb2a60513bf322170903c21462f0bf4f62be2"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80857.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-80857"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "fuse: wait for FR_FINISHED on abort_on_kill to prevent use-after-free"
}