{"id":"CVE-2026-53315","state":"PUBLISHED","title":"drm/amd/ras: Fix NULL deref in ras_core_get_utc_second_timestamp()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/ras: Fix NULL deref in ras_core_get_utc_second_timestamp()\n\nras_core_get_utc_second_timestamp() retrieves the current UTC timestamp\n(in seconds since the Unix epoch) through a platform-specific RAS system\ncallback and is used for timestamping RAS error events.\n\nThe function checks ras_core in the conditional statement before calling\nthe sys_fn callback. However, when the condition fails, the function\nprints an error message using ras_core->dev.\n\nIf ras_core is NULL, this can lead to a potential NULL pointer\ndereference when accessing ras_core->dev.\n\nAdd an early NULL check for ras_core at the beginning of the function\nand return 0 when the pointer is not valid. This prevents the\ndereference and makes the control flow clearer.","publishedAt":"2026-06-26T19:41:08.184Z","updatedAt":"2026-06-26T19:41:08.184Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"13c91b5b4378b5d08dc9ae9121b1645a0beec0bb","status":"affected","lessThan":"6c84f7f0afc415691ffa7d48aa7ce1d8e6083032","versionType":"git"},{"version":"13c91b5b4378b5d08dc9ae9121b1645a0beec0bb","status":"affected","lessThan":"2b8101cc3b34d4d80d799360d2744829d5964479","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/amd/ras/rascore/ras_core.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.19","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.19","versionType":"semver"},{"version":"7.0.10","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/amd/ras/rascore/ras_core.c"]}],"references":["https://git.kernel.org/stable/c/6c84f7f0afc415691ffa7d48aa7ce1d8e6083032","https://git.kernel.org/stable/c/2b8101cc3b34d4d80d799360d2744829d5964479"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:16.098Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/53xxx/CVE-2026-53315.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-53315","state":"PUBLISHED","datePublished":"2026-06-26T19:41:08.184Z","dateUpdated":"2026-06-26T19:41:08.184Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-06-09T07:44:35.397Z"},"containers":{"cna":{"title":"drm/amd/ras: Fix NULL deref in ras_core_get_utc_second_timestamp()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/ras: Fix NULL deref in ras_core_get_utc_second_timestamp()\n\nras_core_get_utc_second_timestamp() retrieves the current UTC timestamp\n(in seconds since the Unix epoch) through a platform-specific RAS system\ncallback and is used for timestamping RAS error events.\n\nThe function checks ras_core in the conditional statement before calling\nthe sys_fn callback. However, when the condition fails, the function\nprints an error message using ras_core->dev.\n\nIf ras_core is NULL, this can lead to a potential NULL pointer\ndereference when accessing ras_core->dev.\n\nAdd an early NULL check for ras_core at the beginning of the function\nand return 0 when the pointer is not valid. This prevents the\ndereference and makes the control flow clearer."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"13c91b5b4378b5d08dc9ae9121b1645a0beec0bb","status":"affected","lessThan":"6c84f7f0afc415691ffa7d48aa7ce1d8e6083032","versionType":"git"},{"version":"13c91b5b4378b5d08dc9ae9121b1645a0beec0bb","status":"affected","lessThan":"2b8101cc3b34d4d80d799360d2744829d5964479","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/amd/ras/rascore/ras_core.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.19","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.19","versionType":"semver"},{"version":"7.0.10","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/amd/ras/rascore/ras_core.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/6c84f7f0afc415691ffa7d48aa7ce1d8e6083032"},{"url":"https://git.kernel.org/stable/c/2b8101cc3b34d4d80d799360d2744829d5964479"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-06-26T19:41:08.184Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.19","versionEndExcluding":"7.0.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.19","versionEndExcluding":"7.1"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}