{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-93081","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-09-17T15:57:05.662Z","datePublished":"2026-09-17T16:11:01.679Z","dateUpdated":"2026-09-17T16:11:01.679Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-09-17T16:11:01.679Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: arm_scmi: Fix SCMI device destroy lifetimes\n\nscmi_child_dev_find() drops the reference returned by\ndevice_find_child() before returning the scmi_device pointer. A\nconcurrent unregister can then release the device while the destroy path\nis still using the returned pointer.\n\nMake the lookup helper return the device_find_child() reference and keep\nit until scmi_device_destroy() has finished unregistering the child.\n\nAlso split device_unregister() in __scmi_device_destroy() so the SCMI bus\nID is not made reusable until after device_del() has removed the old\nscmi_dev.N name from sysfs. This avoids a new SCMI device reusing the\nsame ID while the old device is still registered.\n\nThe final device release callback is also a possible cleanup path when\nSCMI children are deleted by driver core recursion rather than\n__scmi_device_destroy(). Release the SCMI bus ID from a common helper\nused by destroy, register-failure and final-release paths, and clear\nscmi_dev->id after freeing it so the final release cannot free the same\nID again."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/firmware/arm_scmi/bus.c"],"versions":[{"version":"9ca67840c0ddf3f39407339624cef824a4f27599","lessThan":"c59b3393df1348a12308aaabd5fbc58ed6b21cf5","status":"affected","versionType":"git"},{"version":"9ca67840c0ddf3f39407339624cef824a4f27599","lessThan":"6abe8fe36b29ff51d1a42c2f338972883f4751a5","status":"affected","versionType":"git"},{"version":"91ff1e9652fb9beb0174267d6bb38243dff211bb","status":"affected","versionType":"git"},{"version":"ff4273d47da81b95ed9396110bcbd1b7b7470fe8","status":"affected","versionType":"git"},{"version":"2fbf6c9695ad9f05e7e5c166bf43fac7cb3276b3","status":"affected","versionType":"git"},{"version":"969d8beaa2e374387bf9aa5602ef84fc50bb48d8","status":"affected","versionType":"git"},{"version":"8a8a3547d5c4960da053df49c75bf623827a25da","status":"affected","versionType":"git"},{"version":"5.15.182","lessThan":"5.16","status":"affected","versionType":"semver"},{"version":"6.1.138","lessThan":"6.2","status":"affected","versionType":"semver"},{"version":"6.6.90","lessThan":"6.7","status":"affected","versionType":"semver"},{"version":"6.12.28","lessThan":"6.13","status":"affected","versionType":"semver"},{"version":"6.14.6","lessThan":"6.15","status":"affected","versionType":"semver"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/firmware/arm_scmi/bus.c"],"versions":[{"version":"6.15","status":"affected"},{"version":"0","lessThan":"6.15","status":"unaffected","versionType":"semver"},{"version":"7.2.6","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3-rc1","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":"6.15","versionEndExcluding":"7.2.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.15","versionEndExcluding":"7.3-rc1"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15.182"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1.138"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6.90"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12.28"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.14.6"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/c59b3393df1348a12308aaabd5fbc58ed6b21cf5"},{"url":"https://git.kernel.org/stable/c/6abe8fe36b29ff51d1a42c2f338972883f4751a5"}],"title":"firmware: arm_scmi: Fix SCMI device destroy lifetimes","x_generator":{"engine":"bippy-1.2.0"}}}}