{"schema":"threatline.record/2","record":{"id":"CVE-2026-93812","aliases":[],"summary":"ksmbd: fix sd_ndr.data memory leak in ksmbd_vfs_set_sd_xattr","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix sd_ndr.data memory leak in ksmbd_vfs_set_sd_xattr\n\nndr_encode_v4_ntacl() allocates sd_ndr.data via kzalloc() at entry.\nIf any subsequent ndr_write_*() call returns error during encoding,\nthe allocated sd_ndr.data won't be freed and causes memory leak.\n\nMove kfree(sd_ndr.data) into out label to ensure the buffer gets\nreleased on all success and error return paths.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-93812","source_modified_at":"2026-10-03T10:57:44.701Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"Linux","vendor":"Linux","versions":[{"version":"303fff2b8c77a85c62dbde3b27c24b084144c04c","lessThan":"306d6f370da7e0e5532dc51c972f4ce101e42431","status":"affected","versionType":"git"},{"version":"303fff2b8c77a85c62dbde3b27c24b084144c04c","lessThan":"dc55270e410ccb4d24e637c13b5c4c25bcd106d7","status":"affected","versionType":"git"},{"version":"303fff2b8c77a85c62dbde3b27c24b084144c04c","lessThan":"c866c3314a6853eb06c7a8bef67f43c8a8bdfb6e","status":"affected","versionType":"git"},{"version":"303fff2b8c77a85c62dbde3b27c24b084144c04c","lessThan":"9b4dec75498fd0a1c9eaea680aef59c9519eb16f","status":"affected","versionType":"git"},{"version":"303fff2b8c77a85c62dbde3b27c24b084144c04c","lessThan":"c521dd78e036b5e0cfd394dd2ff2218890dd9e41","status":"affected","versionType":"git"},{"version":"303fff2b8c77a85c62dbde3b27c24b084144c04c","lessThan":"d4d56b00c7df88cd5751e7415bdfabc9fdbc82a7","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-93812","source_modified_at":"2026-10-03T10:57:44.701Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"Linux","vendor":"Linux","versions":[{"version":"5.15","status":"affected"},{"version":"0","lessThan":"5.15","status":"unaffected","versionType":"semver"},{"version":"5.15.222","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.189","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.158","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.111","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.53","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}],"defaultStatus":"affected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-93812","source_modified_at":"2026-10-03T10:57:44.701Z","fetched_at":"2026-10-23T18:52:38.922436Z","package":{"name":"Linux","ecosystem":null},"version":"306d6f370da7e0e5532dc51c972f4ce101e42431","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-93812","source_modified_at":"2026-10-03T10:57:44.701Z","fetched_at":"2026-10-23T18:52:38.922436Z","package":{"name":"Linux","ecosystem":null},"version":"9b4dec75498fd0a1c9eaea680aef59c9519eb16f","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":0.00173,"percentile":0.06359,"score_date":"2026-10-23"},"published_at":"2026-09-24T16:02:49.060Z","modified_at":"2026-10-03T10:57:44.701Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-93812","fetched_at":"2026-10-23T18:52:38.922436Z","source_modified_at":"2026-10-03T10:57:44.701Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-93812","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://git.kernel.org/stable/c/306d6f370da7e0e5532dc51c972f4ce101e42431"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/dc55270e410ccb4d24e637c13b5c4c25bcd106d7"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/c866c3314a6853eb06c7a8bef67f43c8a8bdfb6e"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/9b4dec75498fd0a1c9eaea680aef59c9519eb16f"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/c521dd78e036b5e0cfd394dd2ff2218890dd9e41"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/d4d56b00c7df88cd5751e7415bdfabc9fdbc82a7"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-03T10:57:44.701Z","content_hash":"f237f5f189c00bd71444dd1f125724d4b6d7a5bf675b7198399ec6eec023c8ec"}}