{"id":"CVE-2026-98453","title":"smb: client: close handle after create-context parsing failure","summary":"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.  …","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= af1689a9b7701d9907dfc84d2a4b57c4bc907144 < 80c67cc71d32ccafc89a29b669243b40d81b930f","Linux >= af1689a9b7701d9907dfc84d2a4b57c4bc907144 < f09875ff901e933e7b22c913daf51d21e9d93a45","Linux >= af1689a9b7701d9907dfc84d2a4b57c4bc907144 < cdb36b09fb1f86d638d0afb44d621ed3f7c1d8eb","Linux >= af1689a9b7701d9907dfc84d2a4b57c4bc907144 < 566820af017e81497fb5e9d3ad6e7ffe2828bc8b","Linux 6726429c18c62dbf5e96ebbd522f262e016553fb","Linux 13fb0fc4917621f3dfa285a27eaf7151d770b5e5","Linux 890bc4fac3c0973a49cac35f634579bebba7fe48","Linux 1ae3c59355dc9882e09c020afe8ffbd895ad0f29","Linux 17a0f64cc02d4972e21c733d9f21d1c512963afa","Linux >= 5.4.277 < 5.5","Linux >= 5.10.211 < 5.11","Linux >= 5.15.150 < 5.16","Linux >= 6.1.79 < 6.2","Linux >= 6.6.8 < 6.7","Linux 6.7"],"published":"2026-10-18","updated":"2026-10-18","sourceUpdated":"2026-10-18T15:15:03.262Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98453","references":[{"url":"https://git.kernel.org/stable/c/80c67cc71d32ccafc89a29b669243b40d81b930f"},{"url":"https://git.kernel.org/stable/c/f09875ff901e933e7b22c913daf51d21e9d93a45"},{"url":"https://git.kernel.org/stable/c/cdb36b09fb1f86d638d0afb44d621ed3f7c1d8eb"},{"url":"https://git.kernel.org/stable/c/566820af017e81497fb5e9d3ad6e7ffe2828bc8b"}],"tags":["cve.org"],"ingestedAt":"2026-10-18T15:45:12.303Z","slug":"CVE-2026-98453","body":"## Overview\n\nIn 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.\n\n## Affected\n\n- `Linux >= af1689a9b7701d9907dfc84d2a4b57c4bc907144 < 80c67cc71d32ccafc89a29b669243b40d81b930f`\n- `Linux >= af1689a9b7701d9907dfc84d2a4b57c4bc907144 < f09875ff901e933e7b22c913daf51d21e9d93a45`\n- `Linux >= af1689a9b7701d9907dfc84d2a4b57c4bc907144 < cdb36b09fb1f86d638d0afb44d621ed3f7c1d8eb`\n- `Linux >= af1689a9b7701d9907dfc84d2a4b57c4bc907144 < 566820af017e81497fb5e9d3ad6e7ffe2828bc8b`\n- `Linux 6726429c18c62dbf5e96ebbd522f262e016553fb`\n- `Linux 13fb0fc4917621f3dfa285a27eaf7151d770b5e5`\n- `Linux 890bc4fac3c0973a49cac35f634579bebba7fe48`\n- `Linux 1ae3c59355dc9882e09c020afe8ffbd895ad0f29`\n- `Linux 17a0f64cc02d4972e21c733d9f21d1c512963afa`\n- `Linux >= 5.4.277 < 5.5`\n- `Linux >= 5.10.211 < 5.11`\n- `Linux >= 5.15.150 < 5.16`\n- `Linux >= 6.1.79 < 6.2`\n- `Linux >= 6.6.8 < 6.7`\n- `Linux 6.7`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}