{"id":"CVE-2026-80857","revision":"c751516bd78f4ec7bd0889ccb05b236f","records":[{"revision":"c751516bd78f4ec7bd0889ccb05b236f","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-80857","aliases":[],"title":"fuse: wait for FR_FINISHED on abort_on_kill to prevent use-after-free","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nfuse: wait for FR_FINISHED on abort_on_kill to prevent use-after-free\n\nThe abort_on_kill path in request_wait_answer() calls fuse_abort_conn()\nand returns without waiting for FR_FINISHED.  If fuse_dev_do_write() is\nconcurrently processing the same request (FR_LOCKED set), the caller\nfrees req->args while it is still being accessed, causing a\nuse-after-free.\n\nFix this by jumping to the existing wait_event(FR_FINISHED) instead of\nreturning early.  The wait will not hang because fuse_abort_conn()\nensures all requests are ended.","state":0,"publishedAt":"2026-09-04T15:55:10.641+00:00","modifiedAt":"2026-10-19T08:44:51.239+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"fs/fuse/dev.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"0c7fca880a40a209a9c92be14143996d14b93ff6\",\n                            \"lessThan\": \"a8bbb2a60513bf322170903c21462f0bf4f62be2\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"204aa22a686bfee48daca7db620c1e017615f2ff\",\n                            \"lessThan\": \"715cb86e33cda43f5224cdc3fd5610c0b6a46f7a\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"204aa22a686bfee48daca7db620c1e017615f2ff\",\n                            \"lessThan\": \"64b0b5cacbd2fea88001464cb712c9dfc795b26e\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"300e812b882a174dca675d8028684001ad5826bc\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"6.18.25\",\n                            \"lessThan\": \"6.18.50\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.0.2\",\n                            \"lessThan\": \"7.1\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"fs/fuse/dev.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"7.1\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"7.1\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.50\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.3\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/a8bbb2a60513bf322170903c21462f0bf4f62be2","https://git.kernel.org/stable/c/715cb86e33cda43f5224cdc3fd5610c0b6a46f7a","https://git.kernel.org/stable/c/64b0b5cacbd2fea88001464cb712c9dfc795b26e"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-80857","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-80857","identifiers":["CVE-2026-80857"]},"retained":false,"historicalAffected":[]}],"coverage":[]}