{"id":"CVE-2026-93092","state":"PUBLISHED","title":"firmware: arm_scmi: Unregister device notifier before IDR teardown","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: arm_scmi: Unregister device notifier before IDR teardown\n\nThe requested-devices notifier looks up protocol fwnodes from the\nactive_protocols IDR. During remove, unregister the notifier before\nreleasing and destroying active_protocols so no notifier callback can race\nwith the IDR teardown.\n\nKeep the bus notifier registered until after the protocol state is torn\ndown, matching the existing remove ordering for SCMI bus users.","publishedAt":"2026-09-17T16:11:07.715Z","updatedAt":"2026-10-30T12:35:56.077Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"0c0e28e587198b5b4fd742b761cbf7ef9a7fef1c","status":"affected","lessThan":"3ec1f79e912fa0e1c119753c819eb3c2591e71b7","versionType":"git"},{"version":"53b8c25df7082edd78a3fc63e359abee0f28fa70","status":"affected","lessThan":"70a26b37389846f1f29a09f7983aa3f45feff529","versionType":"git"},{"version":"53b8c25df7082edd78a3fc63e359abee0f28fa70","status":"affected","lessThan":"492fb49eac24beecd6d3c5e4744a513e626f8dcf","versionType":"git"},{"version":"53b8c25df7082edd78a3fc63e359abee0f28fa70","status":"affected","lessThan":"f5e528f631425416f9b39e9d8b385c9f1ceb40d6","versionType":"git"},{"version":"53b8c25df7082edd78a3fc63e359abee0f28fa70","status":"affected","lessThan":"74fcaa0a3f7ad3edfde2e8c6cb8ae457a00e0b7a","versionType":"git"},{"version":"53b8c25df7082edd78a3fc63e359abee0f28fa70","status":"affected","lessThan":"66a0bbf30cc14140fe13f63cd594a7c1ee352b75","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/firmware/arm_scmi/driver.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.3","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.3","versionType":"semver"},{"version":"6.6.157","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.110","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.52","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.6","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/firmware/arm_scmi/driver.c"]}],"references":["https://git.kernel.org/stable/c/3ec1f79e912fa0e1c119753c819eb3c2591e71b7","https://git.kernel.org/stable/c/70a26b37389846f1f29a09f7983aa3f45feff529","https://git.kernel.org/stable/c/492fb49eac24beecd6d3c5e4744a513e626f8dcf","https://git.kernel.org/stable/c/f5e528f631425416f9b39e9d8b385c9f1ceb40d6","https://git.kernel.org/stable/c/74fcaa0a3f7ad3edfde2e8c6cb8ae457a00e0b7a","https://git.kernel.org/stable/c/66a0bbf30cc14140fe13f63cd594a7c1ee352b75"],"weaknesses":[],"ingestedAt":"2026-10-30T12:54:04.478Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/93xxx/CVE-2026-93092.json","commit":"1f312381e38164a43607eebab851b151dd16861e","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-93092","state":"PUBLISHED","datePublished":"2026-09-17T16:11:07.715Z","dateUpdated":"2026-10-30T12:35:56.077Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-17T16:02:15.084Z"},"containers":{"cna":{"title":"firmware: arm_scmi: Unregister device notifier before IDR teardown","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: arm_scmi: Unregister device notifier before IDR teardown\n\nThe requested-devices notifier looks up protocol fwnodes from the\nactive_protocols IDR. During remove, unregister the notifier before\nreleasing and destroying active_protocols so no notifier callback can race\nwith the IDR teardown.\n\nKeep the bus notifier registered until after the protocol state is torn\ndown, matching the existing remove ordering for SCMI bus users."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"0c0e28e587198b5b4fd742b761cbf7ef9a7fef1c","status":"affected","lessThan":"3ec1f79e912fa0e1c119753c819eb3c2591e71b7","versionType":"git"},{"version":"53b8c25df7082edd78a3fc63e359abee0f28fa70","status":"affected","lessThan":"70a26b37389846f1f29a09f7983aa3f45feff529","versionType":"git"},{"version":"53b8c25df7082edd78a3fc63e359abee0f28fa70","status":"affected","lessThan":"492fb49eac24beecd6d3c5e4744a513e626f8dcf","versionType":"git"},{"version":"53b8c25df7082edd78a3fc63e359abee0f28fa70","status":"affected","lessThan":"f5e528f631425416f9b39e9d8b385c9f1ceb40d6","versionType":"git"},{"version":"53b8c25df7082edd78a3fc63e359abee0f28fa70","status":"affected","lessThan":"74fcaa0a3f7ad3edfde2e8c6cb8ae457a00e0b7a","versionType":"git"},{"version":"53b8c25df7082edd78a3fc63e359abee0f28fa70","status":"affected","lessThan":"66a0bbf30cc14140fe13f63cd594a7c1ee352b75","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/firmware/arm_scmi/driver.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.3","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.3","versionType":"semver"},{"version":"6.6.157","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.110","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.52","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.6","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/firmware/arm_scmi/driver.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/3ec1f79e912fa0e1c119753c819eb3c2591e71b7"},{"url":"https://git.kernel.org/stable/c/70a26b37389846f1f29a09f7983aa3f45feff529"},{"url":"https://git.kernel.org/stable/c/492fb49eac24beecd6d3c5e4744a513e626f8dcf"},{"url":"https://git.kernel.org/stable/c/f5e528f631425416f9b39e9d8b385c9f1ceb40d6"},{"url":"https://git.kernel.org/stable/c/74fcaa0a3f7ad3edfde2e8c6cb8ae457a00e0b7a"},{"url":"https://git.kernel.org/stable/c/66a0bbf30cc14140fe13f63cd594a7c1ee352b75"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-30T12:35:56.077Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"6.6.157"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"6.12.110"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"6.18.52"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"7.2.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}