{"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": "2026-05-08T14:22:22.651Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-08T14:22:22.651Z"}, "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)."}], "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"}}}}

{}

{"cveTags": [], "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)."}], "id": "CVE-2026-43459", "lastModified": "2026-05-08T15:16:58.753", "metrics": {}, "published": "2026-05-08T15:16:58.753", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/231568afbc0cd25b8fb2a94ebf9738eabe1cf007"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/317a9298c54bb00319da73e5a7179f00e67fcbdf"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3887e514978d28216246360b46a9cb534969eb5a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7d33e6140945482a07f8089ee86e13e02553ffdb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/95bc5c225513fc3c4ce169563fb5e3929fbb938b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/bf80a89da97285d9b877e0c6995e870d46b8025c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c054f0607c8bb1b1aa529bc109e4149298a1cccd"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/eab71e11ce2447c1e01809cbc11eab4234cf8dc8"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: ASoC: soc-core: flush delayed work before removing DAIs and widgets", "id": "2468227", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2468227"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-364", "details": ["A flaw was found in the Linux kernel's sound subsystem (ASoC). When a sound card is unbound while an audio stream is active, a timing issue can lead to a use-after-free vulnerability. This occurs because certain resources are freed before all pending operations are completed. A local attacker could exploit this flaw to cause a system crash, leading to a denial of service."], "name": "CVE-2026-43459", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-05-08T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-43459\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-43459\nhttps://lore.kernel.org/linux-cve-announce/2026050800-CVE-2026-43459-2ed8@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e894efef9ac7c10b7727798dcc711cccf07569f9,bf80a89da97285d9b877e0c6995e870d46b8025c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e894efef9ac7c10b7727798dcc711cccf07569f9,3887e514978d28216246360b46a9cb534969eb5a)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e894efef9ac7c10b7727798dcc711cccf07569f9,231568afbc0cd25b8fb2a94ebf9738eabe1cf007)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e894efef9ac7c10b7727798dcc711cccf07569f9,317a9298c54bb00319da73e5a7179f00e67fcbdf)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e894efef9ac7c10b7727798dcc711cccf07569f9,eab71e11ce2447c1e01809cbc11eab4234cf8dc8)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e894efef9ac7c10b7727798dcc711cccf07569f9,7d33e6140945482a07f8089ee86e13e02553ffdb)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e894efef9ac7c10b7727798dcc711cccf07569f9,c054f0607c8bb1b1aa529bc109e4149298a1cccd)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e894efef9ac7c10b7727798dcc711cccf07569f9,95bc5c225513fc3c4ce169563fb5e3929fbb938b)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "4.20"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,4.20)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.10.253,5.11.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.15.203,5.16.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.167,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.130,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.78,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.19,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.19.9,6.20.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.0,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-05-08T16:45:13.006688+00:00", "updated": "2026-05-09T13:45:34.852146+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-364", "CWE-416"]}