{"id":"CVE-2024-56533","state":"PUBLISHED","title":"ALSA: usx2y: Use snd_card_free_when_closed() at disconnection","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usx2y: Use snd_card_free_when_closed() at disconnection\n\nThe USB disconnect callback is supposed to be short and not too-long\nwaiting.  OTOH, the current code uses snd_card_free() at\ndisconnection, but this waits for the close of all used fds, hence it\ncan take long.  It eventually blocks the upper layer USB ioctls, which\nmay trigger a soft lockup.\n\nAn easy workaround is to replace snd_card_free() with\nsnd_card_free_when_closed().  This variant returns immediately while\nthe release of resources is done asynchronously by the card device\nrelease at the last close.","publishedAt":"2024-12-27T14:11:16.256Z","updatedAt":"2026-05-11T20:54:04.852Z","severity":{"score":5.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","source":"CISA-ADP"},"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"230cd5e24853ed4dd960461989b8ed0986d37a99","status":"affected","lessThan":"24fe9f7ca83ec9acf765339054951f5cd9ae5c5d","versionType":"git"},{"version":"230cd5e24853ed4dd960461989b8ed0986d37a99","status":"affected","lessThan":"befcca1777525e37c659b4129d8ac7463b07ef67","versionType":"git"},{"version":"230cd5e24853ed4dd960461989b8ed0986d37a99","status":"affected","lessThan":"7bd8838c0ea886679a32834fdcacab296d072fbe","versionType":"git"},{"version":"230cd5e24853ed4dd960461989b8ed0986d37a99","status":"affected","lessThan":"e07605d855c4104d981653146a330ea48f6266ed","versionType":"git"},{"version":"230cd5e24853ed4dd960461989b8ed0986d37a99","status":"affected","lessThan":"ffbfc6c4330fc233698529656798bee44fea96f5","versionType":"git"},{"version":"230cd5e24853ed4dd960461989b8ed0986d37a99","status":"affected","lessThan":"e869642a77a9b3b98b0ab2c8fec7af4385140909","versionType":"git"},{"version":"230cd5e24853ed4dd960461989b8ed0986d37a99","status":"affected","lessThan":"dafb28f02be407e07a6f679e922a626592b481b0","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["sound/usb/usx2y/usbusx2y.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.13","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.13","versionType":"semver"},{"version":"5.10.231","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.174","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.120","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.64","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.11.11","status":"unaffected","lessThanOrEqual":"6.11.*","versionType":"semver"},{"version":"6.12.2","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.13","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["sound/usb/usx2y/usbusx2y.c"]}],"references":["https://git.kernel.org/stable/c/24fe9f7ca83ec9acf765339054951f5cd9ae5c5d","https://git.kernel.org/stable/c/befcca1777525e37c659b4129d8ac7463b07ef67","https://git.kernel.org/stable/c/7bd8838c0ea886679a32834fdcacab296d072fbe","https://git.kernel.org/stable/c/e07605d855c4104d981653146a330ea48f6266ed","https://git.kernel.org/stable/c/ffbfc6c4330fc233698529656798bee44fea96f5","https://git.kernel.org/stable/c/e869642a77a9b3b98b0ab2c8fec7af4385140909","https://git.kernel.org/stable/c/dafb28f02be407e07a6f679e922a626592b481b0","https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html","https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"],"weaknesses":["CWE-667"],"ingestedAt":"2026-10-29T20:08:12.933Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/56xxx/CVE-2024-56533.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-56533","state":"PUBLISHED","datePublished":"2024-12-27T14:11:16.256Z","dateUpdated":"2026-05-11T20:54:04.852Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-12-27T14:03:05.985Z"},"containers":{"cna":{"title":"ALSA: usx2y: Use snd_card_free_when_closed() at disconnection","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usx2y: Use snd_card_free_when_closed() at disconnection\n\nThe USB disconnect callback is supposed to be short and not too-long\nwaiting.  OTOH, the current code uses snd_card_free() at\ndisconnection, but this waits for the close of all used fds, hence it\ncan take long.  It eventually blocks the upper layer USB ioctls, which\nmay trigger a soft lockup.\n\nAn easy workaround is to replace snd_card_free() with\nsnd_card_free_when_closed().  This variant returns immediately while\nthe release of resources is done asynchronously by the card device\nrelease at the last close."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"230cd5e24853ed4dd960461989b8ed0986d37a99","status":"affected","lessThan":"24fe9f7ca83ec9acf765339054951f5cd9ae5c5d","versionType":"git"},{"version":"230cd5e24853ed4dd960461989b8ed0986d37a99","status":"affected","lessThan":"befcca1777525e37c659b4129d8ac7463b07ef67","versionType":"git"},{"version":"230cd5e24853ed4dd960461989b8ed0986d37a99","status":"affected","lessThan":"7bd8838c0ea886679a32834fdcacab296d072fbe","versionType":"git"},{"version":"230cd5e24853ed4dd960461989b8ed0986d37a99","status":"affected","lessThan":"e07605d855c4104d981653146a330ea48f6266ed","versionType":"git"},{"version":"230cd5e24853ed4dd960461989b8ed0986d37a99","status":"affected","lessThan":"ffbfc6c4330fc233698529656798bee44fea96f5","versionType":"git"},{"version":"230cd5e24853ed4dd960461989b8ed0986d37a99","status":"affected","lessThan":"e869642a77a9b3b98b0ab2c8fec7af4385140909","versionType":"git"},{"version":"230cd5e24853ed4dd960461989b8ed0986d37a99","status":"affected","lessThan":"dafb28f02be407e07a6f679e922a626592b481b0","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["sound/usb/usx2y/usbusx2y.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.13","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.13","versionType":"semver"},{"version":"5.10.231","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.174","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.120","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.64","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.11.11","status":"unaffected","lessThanOrEqual":"6.11.*","versionType":"semver"},{"version":"6.12.2","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.13","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["sound/usb/usx2y/usbusx2y.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/24fe9f7ca83ec9acf765339054951f5cd9ae5c5d"},{"url":"https://git.kernel.org/stable/c/befcca1777525e37c659b4129d8ac7463b07ef67"},{"url":"https://git.kernel.org/stable/c/7bd8838c0ea886679a32834fdcacab296d072fbe"},{"url":"https://git.kernel.org/stable/c/e07605d855c4104d981653146a330ea48f6266ed"},{"url":"https://git.kernel.org/stable/c/ffbfc6c4330fc233698529656798bee44fea96f5"},{"url":"https://git.kernel.org/stable/c/e869642a77a9b3b98b0ab2c8fec7af4385140909"},{"url":"https://git.kernel.org/stable/c/dafb28f02be407e07a6f679e922a626592b481b0"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T20:54:04.852Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.13","versionEndExcluding":"5.10.231"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.13","versionEndExcluding":"5.15.174"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.13","versionEndExcluding":"6.1.120"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.13","versionEndExcluding":"6.6.64"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.13","versionEndExcluding":"6.11.11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.13","versionEndExcluding":"6.12.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.13","versionEndExcluding":"6.13"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":5.5,"attackVector":"LOCAL","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"id":"CVE-2024-56533","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2025-10-01T20:02:46.027928Z"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-667","lang":"en","type":"CWE","description":"CWE-667 Improper Locking"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-10-01T20:07:17.451Z"}},{"title":"CVE Program 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