{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-37899","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-04-16T04:51:23.965Z","datePublished":"2025-05-20T15:21:34.782Z","dateUpdated":"2026-05-11T21:17:16.984Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T21:17:16.984Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix use-after-free in session logoff\n\nThe sess->user object can currently be in use by another thread, for\nexample if another connection has sent a session setup request to\nbind to the session being free'd. The handler for that connection could\nbe in the smb2_sess_setup function which makes use of sess->user."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/smb/server/smb2pdu.c"],"versions":[{"version":"0626e6641f6b467447c81dd7678a69c66f7746cf","lessThan":"931dc8a3670f71c45c0b1379ea4e92dafbda1aca","status":"affected","versionType":"git"},{"version":"0626e6641f6b467447c81dd7678a69c66f7746cf","lessThan":"70ad6455139e26e85f48f95d0e21f351c1909342","status":"affected","versionType":"git"},{"version":"0626e6641f6b467447c81dd7678a69c66f7746cf","lessThan":"d5ec1d79509b3ee01de02c236f096bc050221b7f","status":"affected","versionType":"git"},{"version":"0626e6641f6b467447c81dd7678a69c66f7746cf","lessThan":"02d16046cd11a5c037b28c12ffb818c56dd3ef43","status":"affected","versionType":"git"},{"version":"0626e6641f6b467447c81dd7678a69c66f7746cf","lessThan":"2fc9feff45d92a92cd5f96487655d5be23fb7e2b","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/smb2pdu.c"],"versions":[{"version":"5.15","status":"affected"},{"version":"0","lessThan":"5.15","status":"unaffected","versionType":"semver"},{"version":"6.1.159","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.119","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.28","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.14.6","lessThanOrEqual":"6.14.*","status":"unaffected","versionType":"semver"},{"version":"6.15","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":"6.1.159"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.6.119"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.12.28"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.14.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.15"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/931dc8a3670f71c45c0b1379ea4e92dafbda1aca"},{"url":"https://git.kernel.org/stable/c/70ad6455139e26e85f48f95d0e21f351c1909342"},{"url":"https://git.kernel.org/stable/c/d5ec1d79509b3ee01de02c236f096bc050221b7f"},{"url":"https://git.kernel.org/stable/c/02d16046cd11a5c037b28c12ffb818c56dd3ef43"},{"url":"https://git.kernel.org/stable/c/2fc9feff45d92a92cd5f96487655d5be23fb7e2b"}],"title":"ksmbd: fix use-after-free in session logoff","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2025-05-24T19:05:08.356Z"},"references":[{"url":"https://sean.heelan.io/2025/05/22/how-i-used-o3-to-find-cve-2025-37899-a-remote-zeroday-vulnerability-in-the-linux-kernels-smb-implementation/"},{"url":"https://news.ycombinator.com/item?id=44081338"}],"title":"CVE Program Container","x_generator":{"engine":"ADPogram 0.0.1"}}]}}