{"schema":"threatline.record/2","record":{"id":"CVE-2026-98453","aliases":[],"summary":"smb: client: close handle after create-context parsing failure","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: close handle after create-context parsing failure\n\nSMB2_open() accounts a successful CREATE response as a remote open before\nparsing its create contexts.  If smb2_parse_contexts() rejects malformed\ncontext data, SMB2_open() returns without closing the handle, leaving the\nserver-side handle open and num_remote_opens elevated.\n\nClose the handle after a post-CREATE context parsing failure so the error\npath releases the remote resource and balances the open count.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98453","source_modified_at":"2026-10-21T12:55:07.969Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"17a0f64cc02d4972e21c733d9f21d1c512963afa","lessThan":"eaa97a196a107d4ef8775df2248181624151812e","status":"affected","versionType":"git"},{"version":"af1689a9b7701d9907dfc84d2a4b57c4bc907144","lessThan":"80c67cc71d32ccafc89a29b669243b40d81b930f","status":"affected","versionType":"git"},{"version":"af1689a9b7701d9907dfc84d2a4b57c4bc907144","lessThan":"f09875ff901e933e7b22c913daf51d21e9d93a45","status":"affected","versionType":"git"},{"version":"af1689a9b7701d9907dfc84d2a4b57c4bc907144","lessThan":"cdb36b09fb1f86d638d0afb44d621ed3f7c1d8eb","status":"affected","versionType":"git"},{"version":"af1689a9b7701d9907dfc84d2a4b57c4bc907144","lessThan":"566820af017e81497fb5e9d3ad6e7ffe2828bc8b","status":"affected","versionType":"git"},{"version":"6726429c18c62dbf5e96ebbd522f262e016553fb","status":"affected","versionType":"git"},{"version":"13fb0fc4917621f3dfa285a27eaf7151d770b5e5","status":"affected","versionType":"git"},{"version":"890bc4fac3c0973a49cac35f634579bebba7fe48","status":"affected","versionType":"git"},{"version":"1ae3c59355dc9882e09c020afe8ffbd895ad0f29","status":"affected","versionType":"git"},{"version":"6.6.8","lessThan":"6.6.160","status":"affected","versionType":"semver"},{"version":"5.4.277","lessThan":"5.5","status":"affected","versionType":"semver"},{"version":"5.10.211","lessThan":"5.11","status":"affected","versionType":"semver"},{"version":"5.15.150","lessThan":"5.16","status":"affected","versionType":"semver"},{"version":"6.1.79","lessThan":"6.2","status":"affected","versionType":"semver"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98453","source_modified_at":"2026-10-21T12:55:07.969Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"6.7","status":"affected"},{"version":"0","lessThan":"6.7","status":"unaffected","versionType":"semver"},{"version":"6.6.160","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.113","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.56","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.9","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}],"defaultStatus":"affected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98453","source_modified_at":"2026-10-21T12:55:07.969Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"80c67cc71d32ccafc89a29b669243b40d81b930f","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98453","source_modified_at":"2026-10-21T12:55:07.969Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"566820af017e81497fb5e9d3ad6e7ffe2828bc8b","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98453","source_modified_at":"2026-10-21T12:55:07.969Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"6.6.160","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98453","source_modified_at":"2026-10-21T12:55:07.969Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"5.5","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98453","source_modified_at":"2026-10-21T12:55:07.969Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"5.11","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98453","source_modified_at":"2026-10-21T12:55:07.969Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"5.16","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98453","source_modified_at":"2026-10-21T12:55:07.969Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"6.2","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":0.00168,"percentile":0.05727,"score_date":"2026-10-23"},"published_at":"2026-10-18T15:15:03.262Z","modified_at":"2026-10-21T12:55:07.969Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-98453","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-21T12:55:07.969Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-98453","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/eaa97a196a107d4ef8775df2248181624151812e"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/80c67cc71d32ccafc89a29b669243b40d81b930f"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/f09875ff901e933e7b22c913daf51d21e9d93a45"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/cdb36b09fb1f86d638d0afb44d621ed3f7c1d8eb"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/566820af017e81497fb5e9d3ad6e7ffe2828bc8b"}],"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":"2026-10-21T12:55:07.969Z","content_hash":"99d6a712f7b4c15eab8d7e96094e4a0410b2cff9d5760e21f52c39dc45321ace"}}