{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-53275","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-09-16T08:09:37.990Z","datePublished":"2025-09-16T08:11:10.475Z","dateUpdated":"2026-05-11T19:41:46.384Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T19:41:46.384Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: hda: fix a possible null-pointer dereference due to data race in snd_hdac_regmap_sync()\n\nThe variable codec->regmap is often protected by the lock\ncodec->regmap_lock when is accessed. However, it is accessed without\nholding the lock when is accessed in snd_hdac_regmap_sync():\n\n  if (codec->regmap)\n\nIn my opinion, this may be a harmful race, because if codec->regmap is\nset to NULL right after the condition is checked, a null-pointer\ndereference can occur in the called function regcache_sync():\n\n  map->lock(map->lock_arg); --> Line 360 in drivers/base/regmap/regcache.c\n\nTo fix this possible null-pointer dereference caused by data race, the\nmutex_lock coverage is extended to protect the if statement as well as the\nfunction call to regcache_sync().\n\n[ Note: the lack of the regmap_lock itself is harmless for the current\n  codec driver implementations, as snd_hdac_regmap_sync() is only for\n  PM runtime resume that is prohibited during the codec probe.\n  But the change makes the whole code more consistent, so it's merged\n  as is -- tiwai ]"}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["sound/hda/hdac_regmap.c"],"versions":[{"version":"69d5dc286d05441ca2f854ae8df11201f6f9b706","lessThan":"109f0aaa0b8838a88af9125b79579023539300a7","status":"affected","versionType":"git"},{"version":"1a462be52f4505a2719631fb5aa7bfdbd37bfd8d","lessThan":"9f9eed451176ffcac6b5ba0f6dae1a6b4a1cb0eb","status":"affected","versionType":"git"},{"version":"1a462be52f4505a2719631fb5aa7bfdbd37bfd8d","lessThan":"8703b26387e1fa4f8749db98d24c67617b873acb","status":"affected","versionType":"git"},{"version":"1a462be52f4505a2719631fb5aa7bfdbd37bfd8d","lessThan":"cdd412b528dee6e0851c4735d6676ec138da13a4","status":"affected","versionType":"git"},{"version":"1a462be52f4505a2719631fb5aa7bfdbd37bfd8d","lessThan":"b32e40379e5b2814de0c4bc199edc2d82317dc07","status":"affected","versionType":"git"},{"version":"1a462be52f4505a2719631fb5aa7bfdbd37bfd8d","lessThan":"1f4a08fed450db87fbb5ff5105354158bdbe1a22","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/hda/hdac_regmap.c"],"versions":[{"version":"5.6","status":"affected"},{"version":"0","lessThan":"5.6","status":"unaffected","versionType":"semver"},{"version":"5.4.255","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.192","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.128","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.47","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.4.12","lessThanOrEqual":"6.4.*","status":"unaffected","versionType":"semver"},{"version":"6.5","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":"5.4.43","versionEndExcluding":"5.4.255"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.6","versionEndExcluding":"5.10.192"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.6","versionEndExcluding":"5.15.128"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.6","versionEndExcluding":"6.1.47"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.6","versionEndExcluding":"6.4.12"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.6","versionEndExcluding":"6.5"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/109f0aaa0b8838a88af9125b79579023539300a7"},{"url":"https://git.kernel.org/stable/c/9f9eed451176ffcac6b5ba0f6dae1a6b4a1cb0eb"},{"url":"https://git.kernel.org/stable/c/8703b26387e1fa4f8749db98d24c67617b873acb"},{"url":"https://git.kernel.org/stable/c/cdd412b528dee6e0851c4735d6676ec138da13a4"},{"url":"https://git.kernel.org/stable/c/b32e40379e5b2814de0c4bc199edc2d82317dc07"},{"url":"https://git.kernel.org/stable/c/1f4a08fed450db87fbb5ff5105354158bdbe1a22"}],"title":"ALSA: hda: fix a possible null-pointer dereference due to data race in snd_hdac_regmap_sync()","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"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-2023-53275","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-01-14T18:06:44.564757Z"}}}],"problemTypes":[{"descriptions":[{"lang":"en","type":"CWE","cweId":"CWE-476","description":"CWE-476 NULL Pointer Dereference"}]}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-01-14T18:12:54.000Z"}}]}}