{"api_version":"1","generated_at":"2026-08-28T17:52:57+00:00","cve":"CVE-2026-80716","urls":{"html":"https://cve.report/CVE-2026-80716","api":"https://cve.report/api/cve/CVE-2026-80716.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-80716","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-80716"},"summary":{"title":"ALSA: pcm: wake linked drain waiters on unlink","description":"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->sleep, 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() -> 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.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-28 08:16:57","updated_at":"2026-08-28 08:16:57"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/c172e4c53321ee6429955295ea133bc3597a3ca9","name":"https://git.kernel.org/stable/c/c172e4c53321ee6429955295ea133bc3597a3ca9","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/e8b784a3f4fba3ea9c4d05138ecfa784a069627f","name":"https://git.kernel.org/stable/c/e8b784a3f4fba3ea9c4d05138ecfa784a069627f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/1c1b7e8e545ce65e40f65b55c432765e058ea98f","name":"https://git.kernel.org/stable/c/1c1b7e8e545ce65e40f65b55c432765e058ea98f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/e8315330e4ec09c0cac625515400e13d0ee22b81","name":"https://git.kernel.org/stable/c/e8315330e4ec09c0cac625515400e13d0ee22b81","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/3035bb784cea3f338934f5042dd3f35225a51b2e","name":"https://git.kernel.org/stable/c/3035bb784cea3f338934f5042dd3f35225a51b2e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/db09bc4ab19ce548a078240d2374792523953500","name":"https://git.kernel.org/stable/c/db09bc4ab19ce548a078240d2374792523953500","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/2940cc3cf43c72126b74ee6376314c195382023a","name":"https://git.kernel.org/stable/c/2940cc3cf43c72126b74ee6376314c195382023a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f495b6c4c8594122918552c9be2b51eb71647cd9","name":"https://git.kernel.org/stable/c/f495b6c4c8594122918552c9be2b51eb71647cd9","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-80716","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80716","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f57f3df03a8e6010e321fa0258d3e054713c3cb7 c172e4c53321ee6429955295ea133bc3597a3ca9 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f57f3df03a8e6010e321fa0258d3e054713c3cb7 3035bb784cea3f338934f5042dd3f35225a51b2e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f57f3df03a8e6010e321fa0258d3e054713c3cb7 1c1b7e8e545ce65e40f65b55c432765e058ea98f git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f57f3df03a8e6010e321fa0258d3e054713c3cb7 e8b784a3f4fba3ea9c4d05138ecfa784a069627f git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.216 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.183 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.151 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.103 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.44 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.8 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["sound/core/pcm_native.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"c172e4c53321ee6429955295ea133bc3597a3ca9","status":"affected","version":"f57f3df03a8e6010e321fa0258d3e054713c3cb7","versionType":"git"},{"lessThan":"3035bb784cea3f338934f5042dd3f35225a51b2e","status":"affected","version":"f57f3df03a8e6010e321fa0258d3e054713c3cb7","versionType":"git"},{"lessThan":"1c1b7e8e545ce65e40f65b55c432765e058ea98f","status":"affected","version":"f57f3df03a8e6010e321fa0258d3e054713c3cb7","versionType":"git"},{"lessThan":"e8b784a3f4fba3ea9c4d05138ecfa784a069627f","status":"affected","version":"f57f3df03a8e6010e321fa0258d3e054713c3cb7","versionType":"git"},{"lessThan":"e8315330e4ec09c0cac625515400e13d0ee22b81","status":"affected","version":"f57f3df03a8e6010e321fa0258d3e054713c3cb7","versionType":"git"},{"lessThan":"2940cc3cf43c72126b74ee6376314c195382023a","status":"affected","version":"f57f3df03a8e6010e321fa0258d3e054713c3cb7","versionType":"git"},{"lessThan":"db09bc4ab19ce548a078240d2374792523953500","status":"affected","version":"f57f3df03a8e6010e321fa0258d3e054713c3cb7","versionType":"git"},{"lessThan":"f495b6c4c8594122918552c9be2b51eb71647cd9","status":"affected","version":"f57f3df03a8e6010e321fa0258d3e054713c3cb7","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["sound/core/pcm_native.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.1"},{"lessThan":"5.1","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.265","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.216","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.183","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.151","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.103","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.44","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.8","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.265","versionStartIncluding":"5.1","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.216","versionStartIncluding":"5.1","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.183","versionStartIncluding":"5.1","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.151","versionStartIncluding":"5.1","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.103","versionStartIncluding":"5.1","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.44","versionStartIncluding":"5.1","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.8","versionStartIncluding":"5.1","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2","versionStartIncluding":"5.1","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"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->sleep, 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() -> 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."}],"providerMetadata":{"dateUpdated":"2026-08-28T06:53:14.286Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/c172e4c53321ee6429955295ea133bc3597a3ca9"},{"url":"https://git.kernel.org/stable/c/3035bb784cea3f338934f5042dd3f35225a51b2e"},{"url":"https://git.kernel.org/stable/c/1c1b7e8e545ce65e40f65b55c432765e058ea98f"},{"url":"https://git.kernel.org/stable/c/e8b784a3f4fba3ea9c4d05138ecfa784a069627f"},{"url":"https://git.kernel.org/stable/c/e8315330e4ec09c0cac625515400e13d0ee22b81"},{"url":"https://git.kernel.org/stable/c/2940cc3cf43c72126b74ee6376314c195382023a"},{"url":"https://git.kernel.org/stable/c/db09bc4ab19ce548a078240d2374792523953500"},{"url":"https://git.kernel.org/stable/c/f495b6c4c8594122918552c9be2b51eb71647cd9"}],"title":"ALSA: pcm: wake linked drain waiters on unlink","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-80716","datePublished":"2026-08-28T06:53:14.286Z","dateReserved":"2026-08-26T14:34:25.788Z","dateUpdated":"2026-08-28T06:53:14.286Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-28 08:16:57","lastModifiedDate":"2026-08-28 08:16:57","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"80716","Ordinal":"1","Title":"ALSA: pcm: wake linked drain waiters on unlink","CVE":"CVE-2026-80716","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"80716","Ordinal":"1","NoteData":"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->sleep, 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() -> 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.","Type":"Description","Title":"ALSA: pcm: wake linked drain waiters on unlink"}]}}}