{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-43459","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-05-01T14:12:56.010Z","datePublished":"2026-05-08T14:22:22.651Z","dateUpdated":"2026-05-11T22:24:59.782Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T22:24:59.782Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: soc-core: flush delayed work before removing DAIs and widgets\n\nWhen a sound card is unbound while a PCM stream is open, a\nuse-after-free can occur in snd_soc_dapm_stream_event(), called from\nthe close_delayed_work workqueue handler.\n\nDuring unbind, snd_soc_unbind_card() flushes delayed work and then\ncalls soc_cleanup_card_resources(). Inside cleanup,\nsnd_card_disconnect_sync() releases all PCM file descriptors, and\nthe resulting PCM close path can call snd_soc_dapm_stream_stop()\nwhich schedules new delayed work with a pmdown_time timer delay.\nSince this happens after the flush in snd_soc_unbind_card(), the\nnew work is not caught. soc_remove_link_components() then frees\nDAPM widgets before this work fires, leading to the use-after-free.\n\nThe existing flush in soc_free_pcm_runtime() also cannot help as it\nruns after soc_remove_link_components() has already freed the widgets.\n\nAdd a flush in soc_cleanup_card_resources() after\nsnd_card_disconnect_sync() (after which no new PCM closes can\nschedule further delayed work) and before soc_remove_link_dais()\nand soc_remove_link_components() (which tear down the structures the\ndelayed work accesses)."}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H","baseScore":7.3,"baseSeverity":"HIGH"}}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["sound/soc/soc-core.c"],"versions":[{"version":"e894efef9ac7c10b7727798dcc711cccf07569f9","lessThan":"bf80a89da97285d9b877e0c6995e870d46b8025c","status":"affected","versionType":"git"},{"version":"e894efef9ac7c10b7727798dcc711cccf07569f9","lessThan":"3887e514978d28216246360b46a9cb534969eb5a","status":"affected","versionType":"git"},{"version":"e894efef9ac7c10b7727798dcc711cccf07569f9","lessThan":"231568afbc0cd25b8fb2a94ebf9738eabe1cf007","status":"affected","versionType":"git"},{"version":"e894efef9ac7c10b7727798dcc711cccf07569f9","lessThan":"317a9298c54bb00319da73e5a7179f00e67fcbdf","status":"affected","versionType":"git"},{"version":"e894efef9ac7c10b7727798dcc711cccf07569f9","lessThan":"eab71e11ce2447c1e01809cbc11eab4234cf8dc8","status":"affected","versionType":"git"},{"version":"e894efef9ac7c10b7727798dcc711cccf07569f9","lessThan":"7d33e6140945482a07f8089ee86e13e02553ffdb","status":"affected","versionType":"git"},{"version":"e894efef9ac7c10b7727798dcc711cccf07569f9","lessThan":"c054f0607c8bb1b1aa529bc109e4149298a1cccd","status":"affected","versionType":"git"},{"version":"e894efef9ac7c10b7727798dcc711cccf07569f9","lessThan":"95bc5c225513fc3c4ce169563fb5e3929fbb938b","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["sound/soc/soc-core.c"],"versions":[{"version":"4.20","status":"affected"},{"version":"0","lessThan":"4.20","status":"unaffected","versionType":"semver"},{"version":"5.10.253","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.203","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.167","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.130","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.78","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.19","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"6.19.9","lessThanOrEqual":"6.19.*","status":"unaffected","versionType":"semver"},{"version":"7.0","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"5.10.253"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"5.15.203"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"6.1.167"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"6.6.130"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"6.12.78"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"6.18.19"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"6.19.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"7.0"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/bf80a89da97285d9b877e0c6995e870d46b8025c"},{"url":"https://git.kernel.org/stable/c/3887e514978d28216246360b46a9cb534969eb5a"},{"url":"https://git.kernel.org/stable/c/231568afbc0cd25b8fb2a94ebf9738eabe1cf007"},{"url":"https://git.kernel.org/stable/c/317a9298c54bb00319da73e5a7179f00e67fcbdf"},{"url":"https://git.kernel.org/stable/c/eab71e11ce2447c1e01809cbc11eab4234cf8dc8"},{"url":"https://git.kernel.org/stable/c/7d33e6140945482a07f8089ee86e13e02553ffdb"},{"url":"https://git.kernel.org/stable/c/c054f0607c8bb1b1aa529bc109e4149298a1cccd"},{"url":"https://git.kernel.org/stable/c/95bc5c225513fc3c4ce169563fb5e3929fbb938b"}],"title":"ASoC: soc-core: flush delayed work before removing DAIs and widgets","x_generator":{"engine":"bippy-1.2.0"}}}}