{"id":"CVE-2023-53206","state":"PUBLISHED","title":"hwmon: (pmbus_core) Fix NULL pointer dereference","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: (pmbus_core) Fix NULL pointer dereference\n\nPass i2c_client to _pmbus_is_enabled to drop the assumption\nthat a regulator device is passed in.\n\nThis will fix the issue of a NULL pointer dereference when called from\n_pmbus_get_flags.","publishedAt":"2025-09-15T14:21:34.551Z","updatedAt":"2026-05-11T19:40:19.806Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"df5f6b6af01ca326dd4babb287c9580fed0ad3d6","status":"affected","lessThan":"7444253cacd92412bc8d33d1c9b5401f52cdf0e2","versionType":"git"},{"version":"df5f6b6af01ca326dd4babb287c9580fed0ad3d6","status":"affected","lessThan":"0bd66784274a287beada2933c2c0fa3a0ddae0d7","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/hwmon/pmbus/pmbus_core.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.4","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.4","versionType":"semver"},{"version":"6.4.8","status":"unaffected","lessThanOrEqual":"6.4.*","versionType":"semver"},{"version":"6.5","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/hwmon/pmbus/pmbus_core.c"]}],"references":["https://git.kernel.org/stable/c/7444253cacd92412bc8d33d1c9b5401f52cdf0e2","https://git.kernel.org/stable/c/0bd66784274a287beada2933c2c0fa3a0ddae0d7"],"weaknesses":[],"ingestedAt":"2026-10-29T20:06:33.064Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/53xxx/CVE-2023-53206.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-53206","state":"PUBLISHED","datePublished":"2025-09-15T14:21:34.551Z","dateUpdated":"2026-05-11T19:40:19.806Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-09-15T13:59:19.068Z"},"containers":{"cna":{"title":"hwmon: (pmbus_core) Fix NULL pointer dereference","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: (pmbus_core) Fix NULL pointer dereference\n\nPass i2c_client to _pmbus_is_enabled to drop the assumption\nthat a regulator device is passed in.\n\nThis will fix the issue of a NULL pointer dereference when called from\n_pmbus_get_flags."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"df5f6b6af01ca326dd4babb287c9580fed0ad3d6","status":"affected","lessThan":"7444253cacd92412bc8d33d1c9b5401f52cdf0e2","versionType":"git"},{"version":"df5f6b6af01ca326dd4babb287c9580fed0ad3d6","status":"affected","lessThan":"0bd66784274a287beada2933c2c0fa3a0ddae0d7","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/hwmon/pmbus/pmbus_core.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.4","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.4","versionType":"semver"},{"version":"6.4.8","status":"unaffected","lessThanOrEqual":"6.4.*","versionType":"semver"},{"version":"6.5","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/hwmon/pmbus/pmbus_core.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/7444253cacd92412bc8d33d1c9b5401f52cdf0e2"},{"url":"https://git.kernel.org/stable/c/0bd66784274a287beada2933c2c0fa3a0ddae0d7"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:40:19.806Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"6.4.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"6.5"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}