{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98453","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-09-25T10:25:14.350Z","datePublished":"2026-10-18T15:15:03.262Z","dateUpdated":"2026-10-21T12:55:07.969Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-10-21T12:55:07.969Z"},"descriptions":[{"lang":"en","value":"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."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/smb/client/smb2pdu.c"],"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"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/smb/client/smb2pdu.c"],"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"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6.8","versionEndExcluding":"6.6.160"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7","versionEndExcluding":"6.12.113"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7","versionEndExcluding":"6.18.56"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7","versionEndExcluding":"7.2.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7","versionEndExcluding":"7.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4.277"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10.211"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15.150"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1.79"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/eaa97a196a107d4ef8775df2248181624151812e"},{"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"}],"title":"smb: client: close handle after create-context parsing failure","x_generator":{"engine":"bippy-1.2.0"}}}}