{ "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": "2026-05-23T15:28:25.281Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-23T15:28:25.281Z" }, "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" }, { "version": "5.4.43", "lessThan": "5.4.255", "status": "affected", "versionType": "semver" } ] }, { "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" } } ] } }