{"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"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/misc/fastrpc.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "3f265e405e5ef85030c3777262e18bb556bc8724", "status": "affected", "version": "76e8e4ace1ed2c97dba3b1370e0e105e07c572bc", "versionType": "git"}, {"lessThan": "a902fe1f80f58a2335b6be1131866f827ec44d1a", "status": "affected", "version": "76e8e4ace1ed2c97dba3b1370e0e105e07c572bc", "versionType": "git"}, {"lessThan": "af6345159abcbaa550518f31990d2a9558c2d369", "status": "affected", "version": "76e8e4ace1ed2c97dba3b1370e0e105e07c572bc", "versionType": "git"}, {"lessThan": "efd02f8d1a7449f15809bc18d3cd41aafea75d7e", "status": "affected", "version": "76e8e4ace1ed2c97dba3b1370e0e105e07c572bc", "versionType": "git"}, {"lessThan": "b85a0e91d7d6cd06a53c881a46f749cfcef416a2", "status": "affected", "version": "76e8e4ace1ed2c97dba3b1370e0e105e07c572bc", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/misc/fastrpc.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.2"}, {"lessThan": "6.2", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.152", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.104", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.45", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.9", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "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\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."}], "id": "CVE-2026-74646", "lastModified": "2026-08-22T16:16:37.940", "metrics": {}, "published": "2026-08-22T16:16:37.940", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3f265e405e5ef85030c3777262e18bb556bc8724"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a902fe1f80f58a2335b6be1131866f827ec44d1a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/af6345159abcbaa550518f31990d2a9558c2d369"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b85a0e91d7d6cd06a53c881a46f749cfcef416a2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/efd02f8d1a7449f15809bc18d3cd41aafea75d7e"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[76e8e4ace1ed2c97dba3b1370e0e105e07c572bc,3f265e405e5ef85030c3777262e18bb556bc8724)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[76e8e4ace1ed2c97dba3b1370e0e105e07c572bc,a902fe1f80f58a2335b6be1131866f827ec44d1a)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[76e8e4ace1ed2c97dba3b1370e0e105e07c572bc,af6345159abcbaa550518f31990d2a9558c2d369)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[76e8e4ace1ed2c97dba3b1370e0e105e07c572bc,efd02f8d1a7449f15809bc18d3cd41aafea75d7e)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[76e8e4ace1ed2c97dba3b1370e0e105e07c572bc,b85a0e91d7d6cd06a53c881a46f749cfcef416a2)"}}], "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": "6.2"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.2)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.152,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.104,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.45,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.9,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2,*]"}}], "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": "2026-08-22T17:15:04.453774+00:00", "title": "Missing Lock in Fastrpc MMAP Handling Allows Race Condition and Possible Exploitation", "updated": "2026-08-22T19:00:14.124179+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-362"]}