{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-74646","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-08-15T05:44:03.923Z","datePublished":"2026-08-22T15:32:23.378Z","dateUpdated":"2026-08-22T15:32:23.378Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-08-22T15:32:23.378Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmisc: fastrpc: take fl->lock when moving mmaps on interrupted invoke\n\nWhen an invoke is interrupted by a signal,\nwait_for_completion_interruptible() returns -ERESTARTSYS and\nfastrpc_internal_invoke() moves every buffer from fl->mmaps onto\ncctx->invoke_interrupted_mmaps. This list_del()/list_add_tail() walk\nruns without holding fl->lock, the lock that serialises fl->mmaps in\nfastrpc_req_mmap() and fastrpc_req_munmap() everywhere else.\n\nTake fl->lock around the move, matching every other fl->mmaps accessor."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/misc/fastrpc.c"],"versions":[{"version":"76e8e4ace1ed2c97dba3b1370e0e105e07c572bc","lessThan":"3f265e405e5ef85030c3777262e18bb556bc8724","status":"affected","versionType":"git"},{"version":"76e8e4ace1ed2c97dba3b1370e0e105e07c572bc","lessThan":"a902fe1f80f58a2335b6be1131866f827ec44d1a","status":"affected","versionType":"git"},{"version":"76e8e4ace1ed2c97dba3b1370e0e105e07c572bc","lessThan":"af6345159abcbaa550518f31990d2a9558c2d369","status":"affected","versionType":"git"},{"version":"76e8e4ace1ed2c97dba3b1370e0e105e07c572bc","lessThan":"efd02f8d1a7449f15809bc18d3cd41aafea75d7e","status":"affected","versionType":"git"},{"version":"76e8e4ace1ed2c97dba3b1370e0e105e07c572bc","lessThan":"b85a0e91d7d6cd06a53c881a46f749cfcef416a2","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/misc/fastrpc.c"],"versions":[{"version":"6.2","status":"affected"},{"version":"0","lessThan":"6.2","status":"unaffected","versionType":"semver"},{"version":"6.6.152","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.104","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.45","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.1.9","lessThanOrEqual":"7.1.*","status":"unaffected","versionType":"semver"},{"version":"7.2","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":"6.2","versionEndExcluding":"6.6.152"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"6.12.104"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"6.18.45"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"7.1.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"7.2"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/3f265e405e5ef85030c3777262e18bb556bc8724"},{"url":"https://git.kernel.org/stable/c/a902fe1f80f58a2335b6be1131866f827ec44d1a"},{"url":"https://git.kernel.org/stable/c/af6345159abcbaa550518f31990d2a9558c2d369"},{"url":"https://git.kernel.org/stable/c/efd02f8d1a7449f15809bc18d3cd41aafea75d7e"},{"url":"https://git.kernel.org/stable/c/b85a0e91d7d6cd06a53c881a46f749cfcef416a2"}],"title":"misc: fastrpc: take fl->lock when moving mmaps on interrupted invoke","x_generator":{"engine":"bippy-1.2.0"}}}}