{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-37954","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-04-16T04:51:23.973Z","datePublished":"2025-05-20T16:01:48.561Z","dateUpdated":"2026-05-11T21:18:19.004Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T21:18:19.004Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: Avoid race in open_cached_dir with lease breaks\n\nA pre-existing valid cfid returned from find_or_create_cached_dir might\nrace with a lease break, meaning open_cached_dir doesn't consider it\nvalid, and thinks it's newly-constructed. This leaks a dentry reference\nif the allocation occurs before the queued lease break work runs.\n\nAvoid the race by extending holding the cfid_list_lock across\nfind_or_create_cached_dir and when the result is checked."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/smb/client/cached_dir.c"],"versions":[{"version":"81ba10959970d15c388bf29866b01b62f387e6a3","lessThan":"2ed98e89ebc2e1bc73534dc3c18cb7843a889ff9","status":"affected","versionType":"git"},{"version":"81ba10959970d15c388bf29866b01b62f387e6a3","lessThan":"571dcf3d27b24800c171aea7b5e04ff06d10e2e9","status":"affected","versionType":"git"},{"version":"81ba10959970d15c388bf29866b01b62f387e6a3","lessThan":"2407265dc32bc8cc45b62a612c2a214ba9038e8b","status":"affected","versionType":"git"},{"version":"81ba10959970d15c388bf29866b01b62f387e6a3","lessThan":"3ca02e63edccb78ef3659bebc68579c7224a6ca2","status":"affected","versionType":"git"},{"version":"436be190fbf81e5d84040dabf9cb7be06a94dc5d","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/client/cached_dir.c"],"versions":[{"version":"6.6","status":"affected"},{"version":"0","lessThan":"6.6","status":"unaffected","versionType":"semver"},{"version":"6.6.91","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.29","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.14.7","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":"6.6","versionEndExcluding":"6.6.91"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"6.12.29"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"6.14.7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"6.15"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.5.10"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/2ed98e89ebc2e1bc73534dc3c18cb7843a889ff9"},{"url":"https://git.kernel.org/stable/c/571dcf3d27b24800c171aea7b5e04ff06d10e2e9"},{"url":"https://git.kernel.org/stable/c/2407265dc32bc8cc45b62a612c2a214ba9038e8b"},{"url":"https://git.kernel.org/stable/c/3ca02e63edccb78ef3659bebc68579c7224a6ca2"}],"title":"smb: client: Avoid race in open_cached_dir with lease breaks","x_generator":{"engine":"bippy-1.2.0"}}}}