{"id":"CVE-2021-47020","state":"PUBLISHED","title":"soundwire: stream: fix memory leak in stream config error path","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nsoundwire: stream: fix memory leak in stream config error path\n\nWhen stream config is failed, master runtime will release all\nslave runtime in the slave_rt_list, but slave runtime is not\nadded to the list at this time. This patch frees slave runtime\nin the config error path to fix the memory leak.","publishedAt":"2024-02-29T22:31:14.086Z","updatedAt":"2026-05-11T13:46:24.492Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"89e590535f32d4bc548bcf266f3b046e50942f6d","status":"affected","lessThan":"342260fe821047c3d515e3d28085d73fbdce3e80","versionType":"git"},{"version":"89e590535f32d4bc548bcf266f3b046e50942f6d","status":"affected","lessThan":"870533403ffa28ff63e173045fc5369365642002","versionType":"git"},{"version":"89e590535f32d4bc548bcf266f3b046e50942f6d","status":"affected","lessThan":"7c468deae306d0cbbd539408c26cfec04c66159a","versionType":"git"},{"version":"89e590535f32d4bc548bcf266f3b046e50942f6d","status":"affected","lessThan":"2f17ac005b320c85d686088cfd4c2e7017912b88","versionType":"git"},{"version":"89e590535f32d4bc548bcf266f3b046e50942f6d","status":"affected","lessThan":"effd2bd62b416f6629e18e3ce077c60de14cfdea","versionType":"git"},{"version":"89e590535f32d4bc548bcf266f3b046e50942f6d","status":"affected","lessThan":"48f17f96a81763c7c8bf5500460a359b9939359f","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/soundwire/stream.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.18","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.18","versionType":"semver"},{"version":"4.19.191","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.119","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.37","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.11.21","status":"unaffected","lessThanOrEqual":"5.11.*","versionType":"semver"},{"version":"5.12.4","status":"unaffected","lessThanOrEqual":"5.12.*","versionType":"semver"},{"version":"5.13","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/soundwire/stream.c"]}],"references":["https://git.kernel.org/stable/c/342260fe821047c3d515e3d28085d73fbdce3e80","https://git.kernel.org/stable/c/870533403ffa28ff63e173045fc5369365642002","https://git.kernel.org/stable/c/7c468deae306d0cbbd539408c26cfec04c66159a","https://git.kernel.org/stable/c/2f17ac005b320c85d686088cfd4c2e7017912b88","https://git.kernel.org/stable/c/effd2bd62b416f6629e18e3ce077c60de14cfdea","https://git.kernel.org/stable/c/48f17f96a81763c7c8bf5500460a359b9939359f"],"weaknesses":[],"ingestedAt":"2026-10-29T19:49:19.404Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/47xxx/CVE-2021-47020.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2021-47020","state":"PUBLISHED","datePublished":"2024-02-29T22:31:14.086Z","dateUpdated":"2026-05-11T13:46:24.492Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-02-27T18:42:55.954Z"},"containers":{"cna":{"title":"soundwire: stream: fix memory leak in stream config error path","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nsoundwire: stream: fix memory leak in stream config error path\n\nWhen stream config is failed, master runtime will release all\nslave runtime in the slave_rt_list, but slave runtime is not\nadded to the list at this time. This patch frees slave runtime\nin the config error path to fix the memory leak."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"89e590535f32d4bc548bcf266f3b046e50942f6d","status":"affected","lessThan":"342260fe821047c3d515e3d28085d73fbdce3e80","versionType":"git"},{"version":"89e590535f32d4bc548bcf266f3b046e50942f6d","status":"affected","lessThan":"870533403ffa28ff63e173045fc5369365642002","versionType":"git"},{"version":"89e590535f32d4bc548bcf266f3b046e50942f6d","status":"affected","lessThan":"7c468deae306d0cbbd539408c26cfec04c66159a","versionType":"git"},{"version":"89e590535f32d4bc548bcf266f3b046e50942f6d","status":"affected","lessThan":"2f17ac005b320c85d686088cfd4c2e7017912b88","versionType":"git"},{"version":"89e590535f32d4bc548bcf266f3b046e50942f6d","status":"affected","lessThan":"effd2bd62b416f6629e18e3ce077c60de14cfdea","versionType":"git"},{"version":"89e590535f32d4bc548bcf266f3b046e50942f6d","status":"affected","lessThan":"48f17f96a81763c7c8bf5500460a359b9939359f","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/soundwire/stream.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.18","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.18","versionType":"semver"},{"version":"4.19.191","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.119","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.37","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.11.21","status":"unaffected","lessThanOrEqual":"5.11.*","versionType":"semver"},{"version":"5.12.4","status":"unaffected","lessThanOrEqual":"5.12.*","versionType":"semver"},{"version":"5.13","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/soundwire/stream.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/342260fe821047c3d515e3d28085d73fbdce3e80"},{"url":"https://git.kernel.org/stable/c/870533403ffa28ff63e173045fc5369365642002"},{"url":"https://git.kernel.org/stable/c/7c468deae306d0cbbd539408c26cfec04c66159a"},{"url":"https://git.kernel.org/stable/c/2f17ac005b320c85d686088cfd4c2e7017912b88"},{"url":"https://git.kernel.org/stable/c/effd2bd62b416f6629e18e3ce077c60de14cfdea"},{"url":"https://git.kernel.org/stable/c/48f17f96a81763c7c8bf5500460a359b9939359f"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T13:46:24.492Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.18","versionEndExcluding":"4.19.191"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.18","versionEndExcluding":"5.4.119"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.18","versionEndExcluding":"5.10.37"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.18","versionEndExcluding":"5.11.21"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.18","versionEndExcluding":"5.12.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.18","versionEndExcluding":"5.13"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2021-47020","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-03-01T15:38:20.510292Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-06-04T17:14:35.139Z"}},{"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/342260fe821047c3d515e3d28085d73fbdce3e80","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/870533403ffa28ff63e173045fc5369365642002","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/7c468deae306d0cbbd539408c26cfec04c66159a","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/2f17ac005b320c85d686088cfd4c2e7017912b88","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/effd2bd62b416f6629e18e3ce077c60de14cfdea","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/48f17f96a81763c7c8bf5500460a359b9939359f","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-04T05:24:39.637Z"}}]}}}