{"id":"CVE-2026-93086","aliases":[],"cve":{"records":[{"id":"CVE-2026-93086","source":"Linux","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-09-17T15:57:05.662Z","published":"2026-09-17T16:11:05.025Z","modified":"2026-10-30T12:35:52.863Z"}],"publishers":[{"name":"Linux","role":"CNA","organizationId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","modified":"2026-10-30T12:35:52.863Z"}],"references":[{"url":"https://git.kernel.org/stable/c/f50698c617350a6e2064dffd6cff3f391e142f55","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/aed24a3c63920539e9de7fbfe7929a2e7c888cd2","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/431c6b872ba7fedcc5a3afb0ec3517db4d95d088","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/54e5a4f7d83db4552d963d0785be32d9df680dcd","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/bab26acebe55e8ad3ab545abda72faa7ca28c477","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/c38b1e19485aaa820e52cfe162525a8af67563da","tags":[],"source":"Linux"}],"weaknesses":[],"applicability":[{"source":"Linux","statements":[{"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"}]}]}]}],"prioritization":[]},"title":"firmware: arm_scmi: Avoid IDR updates while cleaning channels","titleSource":"Linux","descriptionSource":"Linux","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: arm_scmi: Avoid IDR updates while cleaning channels\n\nscmi_cleanup_channels() walks the TX/RX channel IDRs with\nidr_for_each() to free transport resources and destroy the dedicated\ntransport devices before calling idr_destroy().\n\nThe destroy callback removed each entry from the same IDR being walked.\nThat is not needed for this cleanup path, and it is unsafe because\nidr_for_each() has not advanced its radix-tree iterator while the\ncallback is running. Removing the current entry from the callback can\ninvalidate the iterator state. The callback also cannot be protected by\nrcu_read_lock(), because scmi_device_destroy() may sleep.\n\nLeave IDR teardown to the following idr_destroy() call and keep the\ncallback limited to device destruction.","score":null,"severity":"unknown","published":"2026-09-17T16:11:05.025Z","modified":"2026-10-30T12:35:52.863Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"Linux","name":"Linux","platforms":[],"versions":[{"version":"22f7f35fd71b597a5d916e41d7646be6ee530c86","status":"affected","lessThan":"f50698c617350a6e2064dffd6cff3f391e142f55","versionType":"git"},{"version":"05a2801d8b90c1b5159618d4bd3a3c65d60f3ff1","status":"affected","lessThan":"aed24a3c63920539e9de7fbfe7929a2e7c888cd2","versionType":"git"},{"version":"05a2801d8b90c1b5159618d4bd3a3c65d60f3ff1","status":"affected","lessThan":"431c6b872ba7fedcc5a3afb0ec3517db4d95d088","versionType":"git"},{"version":"05a2801d8b90c1b5159618d4bd3a3c65d60f3ff1","status":"affected","lessThan":"54e5a4f7d83db4552d963d0785be32d9df680dcd","versionType":"git"},{"version":"05a2801d8b90c1b5159618d4bd3a3c65d60f3ff1","status":"affected","lessThan":"bab26acebe55e8ad3ab545abda72faa7ca28c477","versionType":"git"},{"version":"05a2801d8b90c1b5159618d4bd3a3c65d60f3ff1","status":"affected","lessThan":"c38b1e19485aaa820e52cfe162525a8af67563da","versionType":"git"}],"defaultStatus":"unaffected","cpes":[],"source":"Linux","url":"https://www.cve.org/CVERecord?id=CVE-2026-93086"},{"vendor":"Linux","name":"Linux","platforms":[],"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"}],"defaultStatus":"affected","cpes":[],"source":"Linux","url":"https://www.cve.org/CVERecord?id=CVE-2026-93086"}],"remediation":[],"references":["https://git.kernel.org/stable/c/f50698c617350a6e2064dffd6cff3f391e142f55","https://git.kernel.org/stable/c/aed24a3c63920539e9de7fbfe7929a2e7c888cd2","https://git.kernel.org/stable/c/431c6b872ba7fedcc5a3afb0ec3517db4d95d088","https://git.kernel.org/stable/c/54e5a4f7d83db4552d963d0785be32d9df680dcd","https://git.kernel.org/stable/c/bab26acebe55e8ad3ab545abda72faa7ca28c477","https://git.kernel.org/stable/c/c38b1e19485aaa820e52cfe162525a8af67563da"],"sources":[{"name":"CVE","id":"CVE-2026-93086","modified":"2026-10-30T12:35:52.863Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-93086"}],"assessments":[],"sourceAffected":[],"observedAt":"2026-10-30T13:54:50.243Z","kev":{"status":"not-listed","checkedAt":"2026-11-14T23:35:33.875Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[],"aiSummary":null}