{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "f57f3df03a8e6010e321fa0258d3e054713c3cb7"
            },
            {
              "fixed": "c172e4c53321ee6429955295ea133bc3597a3ca9"
            },
            {
              "fixed": "3035bb784cea3f338934f5042dd3f35225a51b2e"
            },
            {
              "fixed": "1c1b7e8e545ce65e40f65b55c432765e058ea98f"
            },
            {
              "fixed": "e8b784a3f4fba3ea9c4d05138ecfa784a069627f"
            },
            {
              "fixed": "e8315330e4ec09c0cac625515400e13d0ee22b81"
            },
            {
              "fixed": "2940cc3cf43c72126b74ee6376314c195382023a"
            },
            {
              "fixed": "db09bc4ab19ce548a078240d2374792523953500"
            },
            {
              "fixed": "f495b6c4c8594122918552c9be2b51eb71647cd9"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.1.0"
            },
            {
              "fixed": "5.10.265"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.216"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.183"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.151"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.103"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.44"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80716.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: pcm: wake linked drain waiters on unlink\n\nsnd_pcm_drain() on a linked stream parks an on-stack wait entry on the\ndrained peer's runtime-\u003esleep, and after schedule_timeout() removes it\nonly if that peer is still found in the caller's group.  If group\nmembership changes during the wait and the sleep ends by signal or\ntimeout (so autoremove_wake_function() does not run), finish_wait() is\nskipped and snd_pcm_drain() returns with the entry still queued on that\nstream's sleep list; a later wake_up() then walks a freed stack frame.\nThis is reachable by unlinking either the drained or the draining stream.\n\nUnlike the close path (snd_pcm_drop() -\u003e snd_pcm_post_stop()),\nsnd_pcm_unlink() never wakes the sleep queues.  Wake every group member\nunder the group lock before the membership change, so a linked drainer is\nreleased and drops its entry while the streams are still grouped.\n\nThe window was opened when snd_pcm_link_rwsem stopped being held across\nthe wait and the removal became conditional on group membership (see\nFixes). The later switch to finish_wait() kept that conditional removal,\nso the signal/timeout case remained.",
  "id": "CVE-2026-80716",
  "modified": "2026-08-30T03:30:24.330775761Z",
  "published": "2026-08-28T06:53:14.286Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1c1b7e8e545ce65e40f65b55c432765e058ea98f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2940cc3cf43c72126b74ee6376314c195382023a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3035bb784cea3f338934f5042dd3f35225a51b2e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c172e4c53321ee6429955295ea133bc3597a3ca9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/db09bc4ab19ce548a078240d2374792523953500"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e8315330e4ec09c0cac625515400e13d0ee22b81"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e8b784a3f4fba3ea9c4d05138ecfa784a069627f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f495b6c4c8594122918552c9be2b51eb71647cd9"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80716.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-80716"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "ALSA: pcm: wake linked drain waiters on unlink"
}