{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-39943","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-04-16T07:20:57.148Z","datePublished":"2025-10-04T07:31:05.581Z","dateUpdated":"2026-05-11T21:39:25.408Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T21:39:25.408Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: smbdirect: validate data_offset and data_length field of smb_direct_data_transfer\n\nIf data_offset and data_length of smb_direct_data_transfer struct are\ninvalid, out of bounds issue could happen.\nThis patch validate data_offset and data_length field in recv_done."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/smb/server/transport_rdma.c"],"versions":[{"version":"2ea086e35c3d726a3bacd0a971c1f02a50e98206","lessThan":"773fddf976d282ef059c36c575ddb81567acd6bc","status":"affected","versionType":"git"},{"version":"2ea086e35c3d726a3bacd0a971c1f02a50e98206","lessThan":"bdaab5c6538e250a9654127e688ecbbeb6f771d5","status":"affected","versionType":"git"},{"version":"2ea086e35c3d726a3bacd0a971c1f02a50e98206","lessThan":"eb0378dde086363046ed3d7db7f126fc3f76fd70","status":"affected","versionType":"git"},{"version":"2ea086e35c3d726a3bacd0a971c1f02a50e98206","lessThan":"8be498fcbd5b07272f560b45981d4b9e5a2ad885","status":"affected","versionType":"git"},{"version":"2ea086e35c3d726a3bacd0a971c1f02a50e98206","lessThan":"529b121b00a6ee3c88fb3c01b443b2b81f686d48","status":"affected","versionType":"git"},{"version":"2ea086e35c3d726a3bacd0a971c1f02a50e98206","lessThan":"5282491fc49d5614ac6ddcd012e5743eecb6a67c","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/smb/server/transport_rdma.c"],"versions":[{"version":"5.15","status":"affected"},{"version":"0","lessThan":"5.15","status":"unaffected","versionType":"semver"},{"version":"5.15.194","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.154","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.108","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.49","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.16.9","lessThanOrEqual":"6.16.*","status":"unaffected","versionType":"semver"},{"version":"6.17","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":"5.15","versionEndExcluding":"5.15.194"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.1.154"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.6.108"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.12.49"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.16.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.17"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/773fddf976d282ef059c36c575ddb81567acd6bc"},{"url":"https://git.kernel.org/stable/c/bdaab5c6538e250a9654127e688ecbbeb6f771d5"},{"url":"https://git.kernel.org/stable/c/eb0378dde086363046ed3d7db7f126fc3f76fd70"},{"url":"https://git.kernel.org/stable/c/8be498fcbd5b07272f560b45981d4b9e5a2ad885"},{"url":"https://git.kernel.org/stable/c/529b121b00a6ee3c88fb3c01b443b2b81f686d48"},{"url":"https://git.kernel.org/stable/c/5282491fc49d5614ac6ddcd012e5743eecb6a67c"}],"title":"ksmbd: smbdirect: validate data_offset and data_length field of smb_direct_data_transfer","x_generator":{"engine":"bippy-1.2.0"}}}}