CVE-2026-93081

{"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": "2026-10-30T12:35:49.648Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-30T12:35:49.648Z"}, "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": "ff4273d47da81b95ed9396110bcbd1b7b7470fe8", "lessThan": "afe5c022a180e0ade394d3fffbafc1a701f50993", "status": "affected", "versionType": "git"}, {"version": "2fbf6c9695ad9f05e7e5c166bf43fac7cb3276b3", "lessThan": "d8ecdceeb90cd2c265b222a7b65487faf68fea73", "status": "affected", "versionType": "git"}, {"version": "969d8beaa2e374387bf9aa5602ef84fc50bb48d8", "lessThan": "916e27f71a80f6d77c48d1a1a5782d6d5ef9017c", "status": "affected", "versionType": "git"}, {"version": "9ca67840c0ddf3f39407339624cef824a4f27599", "lessThan": "a60bc2df2d323cc1342f0cf95563cae266801e20", "status": "affected", "versionType": "git"}, {"version": "9ca67840c0ddf3f39407339624cef824a4f27599", "lessThan": "c59b3393df1348a12308aaabd5fbc58ed6b21cf5", "status": "affected", "versionType": "git"}, {"version": "9ca67840c0ddf3f39407339624cef824a4f27599", "lessThan": "6abe8fe36b29ff51d1a42c2f338972883f4751a5", "status": "affected", "versionType": "git"}, {"version": "91ff1e9652fb9beb0174267d6bb38243dff211bb", "status": "affected", "versionType": "git"}, {"version": "8a8a3547d5c4960da053df49c75bf623827a25da", "status": "affected", "versionType": "git"}, {"version": "6.1.138", "lessThan": "6.1.191", "status": "affected", "versionType": "semver"}, {"version": "6.6.90", "lessThan": "6.6.160", "status": "affected", "versionType": "semver"}, {"version": "6.12.28", "lessThan": "6.12.114", "status": "affected", "versionType": "semver"}, {"version": "5.15.182", "lessThan": "5.16", "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": "6.1.191", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.160", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.114", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.57", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.6", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "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": "6.1.138", "versionEndExcluding": "6.1.191"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6.90", "versionEndExcluding": "6.6.160"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12.28", "versionEndExcluding": "6.12.114"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.15", "versionEndExcluding": "6.18.57"}, {"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"}, {"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": "6.14.6"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/afe5c022a180e0ade394d3fffbafc1a701f50993"}, {"url": "https://git.kernel.org/stable/c/d8ecdceeb90cd2c265b222a7b65487faf68fea73"}, {"url": "https://git.kernel.org/stable/c/916e27f71a80f6d77c48d1a1a5782d6d5ef9017c"}, {"url": "https://git.kernel.org/stable/c/a60bc2df2d323cc1342f0cf95563cae266801e20"}, {"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"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/firmware/arm_scmi/bus.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "afe5c022a180e0ade394d3fffbafc1a701f50993", "status": "affected", "version": "ff4273d47da81b95ed9396110bcbd1b7b7470fe8", "versionType": "git"}, {"lessThan": "d8ecdceeb90cd2c265b222a7b65487faf68fea73", "status": "affected", "version": "2fbf6c9695ad9f05e7e5c166bf43fac7cb3276b3", "versionType": "git"}, {"lessThan": "916e27f71a80f6d77c48d1a1a5782d6d5ef9017c", "status": "affected", "version": "969d8beaa2e374387bf9aa5602ef84fc50bb48d8", "versionType": "git"}, {"lessThan": "a60bc2df2d323cc1342f0cf95563cae266801e20", "status": "affected", "version": "9ca67840c0ddf3f39407339624cef824a4f27599", "versionType": "git"}, {"lessThan": "c59b3393df1348a12308aaabd5fbc58ed6b21cf5", "status": "affected", "version": "9ca67840c0ddf3f39407339624cef824a4f27599", "versionType": "git"}, {"lessThan": "6abe8fe36b29ff51d1a42c2f338972883f4751a5", "status": "affected", "version": "9ca67840c0ddf3f39407339624cef824a4f27599", "versionType": "git"}, {"status": "affected", "version": "91ff1e9652fb9beb0174267d6bb38243dff211bb", "versionType": "git"}, {"status": "affected", "version": "8a8a3547d5c4960da053df49c75bf623827a25da", "versionType": "git"}, {"lessThan": "6.1.191", "status": "affected", "version": "6.1.138", "versionType": "semver"}, {"lessThan": "6.6.160", "status": "affected", "version": "6.6.90", "versionType": "semver"}, {"lessThan": "6.12.114", "status": "affected", "version": "6.12.28", "versionType": "semver"}, {"lessThan": "5.16", "status": "affected", "version": "5.15.182", "versionType": "semver"}, {"lessThan": "6.15", "status": "affected", "version": "6.14.6", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/firmware/arm_scmi/bus.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.15"}, {"lessThan": "6.15", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.191", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.160", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.114", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.57", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.6", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "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."}], "id": "CVE-2026-93081", "lastModified": "2026-10-30T13:20:56.310", "metrics": {}, "published": "2026-09-17T17:18:02.063", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6abe8fe36b29ff51d1a42c2f338972883f4751a5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/916e27f71a80f6d77c48d1a1a5782d6d5ef9017c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a60bc2df2d323cc1342f0cf95563cae266801e20"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/afe5c022a180e0ade394d3fffbafc1a701f50993"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c59b3393df1348a12308aaabd5fbc58ed6b21cf5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d8ecdceeb90cd2c265b222a7b65487faf68fea73"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9ca67840c0ddf3f39407339624cef824a4f27599,c59b3393df1348a12308aaabd5fbc58ed6b21cf5)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[9ca67840c0ddf3f39407339624cef824a4f27599,6abe8fe36b29ff51d1a42c2f338972883f4751a5)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "91ff1e9652fb9beb0174267d6bb38243dff211bb"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "ff4273d47da81b95ed9396110bcbd1b7b7470fe8"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "2fbf6c9695ad9f05e7e5c166bf43fac7cb3276b3"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "969d8beaa2e374387bf9aa5602ef84fc50bb48d8"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "8a8a3547d5c4960da053df49c75bf623827a25da"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[5.15.182,5.16)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.1.138,6.2)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.6.90,6.7)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.12.28,6.13)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.14.6,6.15)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.15"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.15)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2.6,7.2.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3-rc1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-09-19T06:45:17.071291+00:00", "updated": "2026-09-19T17:00:11.505809+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-416", "CWE-665"]}