{"id":"CVE-2026-72453","state":"PUBLISHED","title":"regcache: Do not overwrite error code when finalizing cache after error","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nregcache: Do not overwrite error code when finalizing cache after error\n\nDuring regcache initialization, if an error occurs in the\ncache_ops->populate callback, and if cache operations include an exit\ncallback, the error code from populate() is overwritten with the return\nvalue from exit(). This hides the error condition from the caller of\nregcache_init(), and can cause NULL pointer dereferences when the regcache\nis later accessed.","publishedAt":"2026-08-15T05:57:00.921Z","updatedAt":"2026-10-30T12:29:26.327Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"5e43756123197e7bca4920a47d20d9eff0e203c3","status":"affected","lessThan":"b454870bbdb3b34ffeaebf0d8e1726cc0aaa2de4","versionType":"git"},{"version":"b498b70a8174bcb4e801d4d794a49f2d143c5c9f","status":"affected","lessThan":"bae057687f61580dd897411cd749da22a7740647","versionType":"git"},{"version":"94a3a95f03154d8d4c6206950a7f6ef9a30baec6","status":"affected","lessThan":"9f171aa115ec76be02c76c5765cd2c865279e34a","versionType":"git"},{"version":"94a3a95f03154d8d4c6206950a7f6ef9a30baec6","status":"affected","lessThan":"9108f7fa493b4c88cbc09503e0c164244456bad5","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/base/regmap/regcache.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.19","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.19","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":["drivers/base/regmap/regcache.c"]}],"references":["https://git.kernel.org/stable/c/b454870bbdb3b34ffeaebf0d8e1726cc0aaa2de4","https://git.kernel.org/stable/c/bae057687f61580dd897411cd749da22a7740647","https://git.kernel.org/stable/c/9f171aa115ec76be02c76c5765cd2c865279e34a","https://git.kernel.org/stable/c/9108f7fa493b4c88cbc09503e0c164244456bad5"],"weaknesses":[],"ingestedAt":"2026-10-30T12:48:04.825Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/72xxx/CVE-2026-72453.json","commit":"1f312381e38164a43607eebab851b151dd16861e","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-72453","state":"PUBLISHED","datePublished":"2026-08-15T05:57:00.921Z","dateUpdated":"2026-10-30T12:29:26.327Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-08-09T03:40:39.932Z"},"containers":{"cna":{"title":"regcache: Do not overwrite error code when finalizing cache after error","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nregcache: Do not overwrite error code when finalizing cache after error\n\nDuring regcache initialization, if an error occurs in the\ncache_ops->populate callback, and if cache operations include an exit\ncallback, the error code from populate() is overwritten with the return\nvalue from exit(). This hides the error condition from the caller of\nregcache_init(), and can cause NULL pointer dereferences when the regcache\nis later accessed."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"5e43756123197e7bca4920a47d20d9eff0e203c3","status":"affected","lessThan":"b454870bbdb3b34ffeaebf0d8e1726cc0aaa2de4","versionType":"git"},{"version":"b498b70a8174bcb4e801d4d794a49f2d143c5c9f","status":"affected","lessThan":"bae057687f61580dd897411cd749da22a7740647","versionType":"git"},{"version":"94a3a95f03154d8d4c6206950a7f6ef9a30baec6","status":"affected","lessThan":"9f171aa115ec76be02c76c5765cd2c865279e34a","versionType":"git"},{"version":"94a3a95f03154d8d4c6206950a7f6ef9a30baec6","status":"affected","lessThan":"9108f7fa493b4c88cbc09503e0c164244456bad5","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/base/regmap/regcache.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.19","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.19","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":["drivers/base/regmap/regcache.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/b454870bbdb3b34ffeaebf0d8e1726cc0aaa2de4"},{"url":"https://git.kernel.org/stable/c/bae057687f61580dd897411cd749da22a7740647"},{"url":"https://git.kernel.org/stable/c/9f171aa115ec76be02c76c5765cd2c865279e34a"},{"url":"https://git.kernel.org/stable/c/9108f7fa493b4c88cbc09503e0c164244456bad5"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-30T12:29:26.327Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.19","versionEndExcluding":"7.1.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.19","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}