{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-21962","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-12-29T08:45:45.795Z","datePublished":"2025-04-01T15:46:59.285Z","dateUpdated":"2026-05-11T21:09:54.725Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T21:09:54.725Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ncifs: Fix integer overflow while processing closetimeo mount option\n\nUser-provided mount parameter closetimeo of type u32 is intended to have\nan upper limit, but before it is validated, the value is converted from\nseconds to jiffies which can lead to an integer overflow.\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/smb/client/fs_context.c"],"versions":[{"version":"1d9cad9c5873097ea141ffc5da1e7921ce765aa8","lessThan":"513f6cf2e906a504b7ab0b62b2eea993a6f64558","status":"affected","versionType":"git"},{"version":"5efdd9122eff772eae2feae9f0fc0ec02d4846a3","lessThan":"9968fcf02cf6b0f78fbacf3f63e782162603855a","status":"affected","versionType":"git"},{"version":"5efdd9122eff772eae2feae9f0fc0ec02d4846a3","lessThan":"6c13fcb7cf59ae65940da1dfea80144e42921e53","status":"affected","versionType":"git"},{"version":"5efdd9122eff772eae2feae9f0fc0ec02d4846a3","lessThan":"1c46673be93dd2954f44fe370fb4f2b8e6214224","status":"affected","versionType":"git"},{"version":"5efdd9122eff772eae2feae9f0fc0ec02d4846a3","lessThan":"b24edd5c191c2689c59d0509f0903f9487eb6317","status":"affected","versionType":"git"},{"version":"5efdd9122eff772eae2feae9f0fc0ec02d4846a3","lessThan":"d5a30fddfe2f2e540f6c43b59cf701809995faef","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/fs_context.c"],"versions":[{"version":"6.0","status":"affected"},{"version":"0","lessThan":"6.0","status":"unaffected","versionType":"semver"},{"version":"5.15.180","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.132","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.84","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.20","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.13.8","lessThanOrEqual":"6.13.*","status":"unaffected","versionType":"semver"},{"version":"6.14","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":"5.15.107","versionEndExcluding":"5.15.180"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.1.132"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.6.84"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.12.20"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.13.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.14"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/513f6cf2e906a504b7ab0b62b2eea993a6f64558"},{"url":"https://git.kernel.org/stable/c/9968fcf02cf6b0f78fbacf3f63e782162603855a"},{"url":"https://git.kernel.org/stable/c/6c13fcb7cf59ae65940da1dfea80144e42921e53"},{"url":"https://git.kernel.org/stable/c/1c46673be93dd2954f44fe370fb4f2b8e6214224"},{"url":"https://git.kernel.org/stable/c/b24edd5c191c2689c59d0509f0903f9487eb6317"},{"url":"https://git.kernel.org/stable/c/d5a30fddfe2f2e540f6c43b59cf701809995faef"}],"title":"cifs: Fix integer overflow while processing closetimeo mount option","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":5.5,"attackVector":"LOCAL","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"id":"CVE-2025-21962","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2025-10-01T19:22:06.495160Z"}}}],"problemTypes":[{"descriptions":[{"lang":"en","type":"CWE","cweId":"CWE-190","description":"CWE-190 Integer Overflow or Wraparound"}]}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2025-10-01T19:26:32.531Z"}},{"title":"CVE Program Container","references":[{"url":"https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html"}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2025-11-03T19:40:04.218Z"}}]}}