{"id":"CVE-2026-74291","state":"PUBLISHED","title":"ASoC: topology: Check PCM and DAI name strings before use","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: topology: Check PCM and DAI name strings before use\n\nTopology objects store several PCM and DAI names in fixed-size UAPI\narrays. Other topology parser paths validate these fields with bounded\nstrnlen() checks before using them as C strings, but the PCM and DAI\npaths still pass some fixed-size arrays directly to strlen(),\ndevm_kstrdup(), DAI lookup, and diagnostic prints.\n\nA malformed topology blob with a non-NUL-terminated PCM, DAI, or stream\ncapability name can therefore make the parser read past the end of the\nfixed-size field.\n\nReject unterminated PCM and DAI name fields before consuming them as C\nstrings.","publishedAt":"2026-08-15T05:57:57.631Z","updatedAt":"2026-10-30T12:29:38.001Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"64527e8a352968bda529f01df1c9dd5fe581ff04","status":"affected","lessThan":"d09dad8dff862c4b5aac48b1223e512074ffeb08","versionType":"git"},{"version":"64527e8a352968bda529f01df1c9dd5fe581ff04","status":"affected","lessThan":"c405b07246bf179e9457de57501c3470175b165e","versionType":"git"},{"version":"64527e8a352968bda529f01df1c9dd5fe581ff04","status":"affected","lessThan":"473f7d25d93e80db526a9d05887f0071abdc6d9b","versionType":"git"},{"version":"64527e8a352968bda529f01df1c9dd5fe581ff04","status":"affected","lessThan":"5c2537cf24d673956b4e58029001667f89586fa2","versionType":"git"},{"version":"64527e8a352968bda529f01df1c9dd5fe581ff04","status":"affected","lessThan":"ba37b62ed0a443b8e23f53a7477e7f2537fd34c7","versionType":"git"},{"version":"64527e8a352968bda529f01df1c9dd5fe581ff04","status":"affected","lessThan":"b7e44d1986d6671342c19b82192189ca5db5dab7","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["sound/soc/soc-topology.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.6","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.6","versionType":"semver"},{"version":"6.1.191","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.158","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.111","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.53","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.5","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["sound/soc/soc-topology.c"]}],"references":["https://git.kernel.org/stable/c/d09dad8dff862c4b5aac48b1223e512074ffeb08","https://git.kernel.org/stable/c/c405b07246bf179e9457de57501c3470175b165e","https://git.kernel.org/stable/c/473f7d25d93e80db526a9d05887f0071abdc6d9b","https://git.kernel.org/stable/c/5c2537cf24d673956b4e58029001667f89586fa2","https://git.kernel.org/stable/c/ba37b62ed0a443b8e23f53a7477e7f2537fd34c7","https://git.kernel.org/stable/c/b7e44d1986d6671342c19b82192189ca5db5dab7"],"weaknesses":[],"ingestedAt":"2026-10-30T12:48:04.825Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/74xxx/CVE-2026-74291.json","commit":"1f312381e38164a43607eebab851b151dd16861e","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-74291","state":"PUBLISHED","datePublished":"2026-08-15T05:57:57.631Z","dateUpdated":"2026-10-30T12:29:38.001Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-08-15T05:44:03.881Z"},"containers":{"cna":{"title":"ASoC: topology: Check PCM and DAI name strings before use","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: topology: Check PCM and DAI name strings before use\n\nTopology objects store several PCM and DAI names in fixed-size UAPI\narrays. Other topology parser paths validate these fields with bounded\nstrnlen() checks before using them as C strings, but the PCM and DAI\npaths still pass some fixed-size arrays directly to strlen(),\ndevm_kstrdup(), DAI lookup, and diagnostic prints.\n\nA malformed topology blob with a non-NUL-terminated PCM, DAI, or stream\ncapability name can therefore make the parser read past the end of the\nfixed-size field.\n\nReject unterminated PCM and DAI name fields before consuming them as C\nstrings."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"64527e8a352968bda529f01df1c9dd5fe581ff04","status":"affected","lessThan":"d09dad8dff862c4b5aac48b1223e512074ffeb08","versionType":"git"},{"version":"64527e8a352968bda529f01df1c9dd5fe581ff04","status":"affected","lessThan":"c405b07246bf179e9457de57501c3470175b165e","versionType":"git"},{"version":"64527e8a352968bda529f01df1c9dd5fe581ff04","status":"affected","lessThan":"473f7d25d93e80db526a9d05887f0071abdc6d9b","versionType":"git"},{"version":"64527e8a352968bda529f01df1c9dd5fe581ff04","status":"affected","lessThan":"5c2537cf24d673956b4e58029001667f89586fa2","versionType":"git"},{"version":"64527e8a352968bda529f01df1c9dd5fe581ff04","status":"affected","lessThan":"ba37b62ed0a443b8e23f53a7477e7f2537fd34c7","versionType":"git"},{"version":"64527e8a352968bda529f01df1c9dd5fe581ff04","status":"affected","lessThan":"b7e44d1986d6671342c19b82192189ca5db5dab7","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["sound/soc/soc-topology.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.6","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.6","versionType":"semver"},{"version":"6.1.191","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.158","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.111","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.53","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.5","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["sound/soc/soc-topology.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/d09dad8dff862c4b5aac48b1223e512074ffeb08"},{"url":"https://git.kernel.org/stable/c/c405b07246bf179e9457de57501c3470175b165e"},{"url":"https://git.kernel.org/stable/c/473f7d25d93e80db526a9d05887f0071abdc6d9b"},{"url":"https://git.kernel.org/stable/c/5c2537cf24d673956b4e58029001667f89586fa2"},{"url":"https://git.kernel.org/stable/c/ba37b62ed0a443b8e23f53a7477e7f2537fd34c7"},{"url":"https://git.kernel.org/stable/c/b7e44d1986d6671342c19b82192189ca5db5dab7"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-30T12:29:38.001Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"6.1.191"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"6.6.158"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"6.12.111"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"6.18.53"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"7.1.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}