{"api_version":"1","generated_at":"2026-09-20T14:40:21+00:00","cve":"CVE-2026-92491","urls":{"html":"https://cve.report/CVE-2026-92491","api":"https://cve.report/api/cve/CVE-2026-92491.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-92491","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-92491"},"summary":{"title":"firmware: arm_scmi: Roll back partial protocol table registration","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: arm_scmi: Roll back partial protocol table registration\n\nscmi_protocol_table_register() can leave earlier requests registered when\na later entry in the same ID table fails. Each request retains a pointer\nto the driver's ID table, so a failed module load can leave a dangling\npointer after the module storage is released.\n\nUnrequest only the successfully registered prefix, in reverse order,\nbefore returning the failure. Leave the failed entry and the remaining\nentries untouched because matching requests can be owned by another\ndriver.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-09-17 17:17:51","updated_at":"2026-09-17 17:17:51"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/2224b622260ba590ab56ea1585d6bf7610be25b2","name":"https://git.kernel.org/stable/c/2224b622260ba590ab56ea1585d6bf7610be25b2","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/3fa8cabd2d8ed80dd0b818ca7fd410b591392ff6","name":"https://git.kernel.org/stable/c/3fa8cabd2d8ed80dd0b818ca7fd410b591392ff6","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ee556d118b11c6f5b60a32c1e84f366b336ac7d7","name":"https://git.kernel.org/stable/c/ee556d118b11c6f5b60a32c1e84f366b336ac7d7","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/826413b858ea2969e4c3e8197d0065efc47c6343","name":"https://git.kernel.org/stable/c/826413b858ea2969e4c3e8197d0065efc47c6343","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/456856a34906475fcf4b23879237103770dc7ef2","name":"https://git.kernel.org/stable/c/456856a34906475fcf4b23879237103770dc7ef2","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-92491","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-92491","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 41714150f3d148fbcd7a947869c85531b53c50d4 ee556d118b11c6f5b60a32c1e84f366b336ac7d7 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2858f6e5f06440d6b9e9c3f57bc68915344830a9 3fa8cabd2d8ed80dd0b818ca7fd410b591392ff6 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2858f6e5f06440d6b9e9c3f57bc68915344830a9 456856a34906475fcf4b23879237103770dc7ef2 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2858f6e5f06440d6b9e9c3f57bc68915344830a9 826413b858ea2969e4c3e8197d0065efc47c6343 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2858f6e5f06440d6b9e9c3f57bc68915344830a9 2224b622260ba590ab56ea1585d6bf7610be25b2 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.9","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.9 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.110 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.52 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.6 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3-rc1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"92491","cve":"CVE-2026-92491","epss":"0.001680000","percentile":"0.065050000","score_date":"2026-09-18","updated_at":"2026-09-19 00:06:17"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"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":"ee556d118b11c6f5b60a32c1e84f366b336ac7d7","status":"affected","version":"41714150f3d148fbcd7a947869c85531b53c50d4","versionType":"git"},{"lessThan":"3fa8cabd2d8ed80dd0b818ca7fd410b591392ff6","status":"affected","version":"2858f6e5f06440d6b9e9c3f57bc68915344830a9","versionType":"git"},{"lessThan":"456856a34906475fcf4b23879237103770dc7ef2","status":"affected","version":"2858f6e5f06440d6b9e9c3f57bc68915344830a9","versionType":"git"},{"lessThan":"826413b858ea2969e4c3e8197d0065efc47c6343","status":"affected","version":"2858f6e5f06440d6b9e9c3f57bc68915344830a9","versionType":"git"},{"lessThan":"2224b622260ba590ab56ea1585d6bf7610be25b2","status":"affected","version":"2858f6e5f06440d6b9e9c3f57bc68915344830a9","versionType":"git"}]},{"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":"6.9"},{"lessThan":"6.9","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.110","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.52","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.6","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.110","versionStartIncluding":"6.9","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.52","versionStartIncluding":"6.9","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.6","versionStartIncluding":"6.9","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3-rc1","versionStartIncluding":"6.9","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: arm_scmi: Roll back partial protocol table registration\n\nscmi_protocol_table_register() can leave earlier requests registered when\na later entry in the same ID table fails. Each request retains a pointer\nto the driver's ID table, so a failed module load can leave a dangling\npointer after the module storage is released.\n\nUnrequest only the successfully registered prefix, in reverse order,\nbefore returning the failure. Leave the failed entry and the remaining\nentries untouched because matching requests can be owned by another\ndriver."}],"providerMetadata":{"dateUpdated":"2026-09-17T16:10:06.627Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/ee556d118b11c6f5b60a32c1e84f366b336ac7d7"},{"url":"https://git.kernel.org/stable/c/3fa8cabd2d8ed80dd0b818ca7fd410b591392ff6"},{"url":"https://git.kernel.org/stable/c/456856a34906475fcf4b23879237103770dc7ef2"},{"url":"https://git.kernel.org/stable/c/826413b858ea2969e4c3e8197d0065efc47c6343"},{"url":"https://git.kernel.org/stable/c/2224b622260ba590ab56ea1585d6bf7610be25b2"}],"title":"firmware: arm_scmi: Roll back partial protocol table registration","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-92491","datePublished":"2026-09-17T16:10:06.627Z","dateReserved":"2026-09-16T12:21:13.871Z","dateUpdated":"2026-09-17T16:10:06.627Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-17 17:17:51","lastModifiedDate":"2026-09-17 17:17:51","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"92491","Ordinal":"1","Title":"firmware: arm_scmi: Roll back partial protocol table registratio","CVE":"CVE-2026-92491","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"92491","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: arm_scmi: Roll back partial protocol table registration\n\nscmi_protocol_table_register() can leave earlier requests registered when\na later entry in the same ID table fails. Each request retains a pointer\nto the driver's ID table, so a failed module load can leave a dangling\npointer after the module storage is released.\n\nUnrequest only the successfully registered prefix, in reverse order,\nbefore returning the failure. Leave the failed entry and the remaining\nentries untouched because matching requests can be owned by another\ndriver.","Type":"Description","Title":"firmware: arm_scmi: Roll back partial protocol table registratio"}]}}}