{"id":"CVE-2025-37962","state":"PUBLISHED","title":"ksmbd: fix memory leak in parse_lease_state()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix memory leak in parse_lease_state()\n\nThe previous patch that added bounds check for create lease context\nintroduced a memory leak. When the bounds check fails, the function\nreturns NULL without freeing the previously allocated lease_ctx_info\nstructure.\n\nThis patch fixes the issue by adding kfree(lreq) before returning NULL\nin both boundary check cases.","publishedAt":"2025-05-20T16:01:54.612Z","updatedAt":"2026-05-23T15:58:41.897Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"629dd37acc336ad778979361c351e782053ea284","status":"affected","lessThan":"facf22c1a394c1e023dab5daf9a494f722771e1c","versionType":"git"},{"version":"60b7207893a8a06c78441934931a08fdad63f18e","status":"affected","lessThan":"af9e2d4732a548db8f6f5a90c2c20a789a3d7240","versionType":"git"},{"version":"800c482c9ef5910f05e3a713943c67cc6c1d4939","status":"affected","lessThan":"2148d34371b06dac696c0497a98a6bf905a51650","versionType":"git"},{"version":"9a1b6ea955e6c7b29939a6d98701202f9d9644ec","status":"affected","lessThan":"829e19ef741d9e9932abdc3bee5466195e0852cf","versionType":"git"},{"version":"bab703ed8472aa9d109c5f8c1863921533363dae","status":"affected","lessThan":"eb4447bcce915b43b691123118893fca4f372a8f","versionType":"git"},{"version":"a41cd52f00907a040ca22c73d4805bb79b0d0972","status":"affected","versionType":"git"},{"version":"6.13.11","status":"affected","lessThan":"6.14","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/smb/server/oplock.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"6.1.134","status":"affected","lessThan":"6.1.139","versionType":"semver"},{"version":"6.6.87","status":"affected","lessThan":"6.6.91","versionType":"semver"},{"version":"6.12.23","status":"affected","lessThan":"6.12.29","versionType":"semver"},{"version":"6.14.2","status":"affected","lessThan":"6.14.7","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/smb/server/oplock.c"]}],"references":["https://git.kernel.org/stable/c/facf22c1a394c1e023dab5daf9a494f722771e1c","https://git.kernel.org/stable/c/af9e2d4732a548db8f6f5a90c2c20a789a3d7240","https://git.kernel.org/stable/c/2148d34371b06dac696c0497a98a6bf905a51650","https://git.kernel.org/stable/c/829e19ef741d9e9932abdc3bee5466195e0852cf","https://git.kernel.org/stable/c/eb4447bcce915b43b691123118893fca4f372a8f","https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html"],"weaknesses":[],"ingestedAt":"2026-10-29T20:09:03.054Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/37xxx/CVE-2025-37962.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-37962","state":"PUBLISHED","datePublished":"2025-05-20T16:01:54.612Z","dateUpdated":"2026-05-23T15:58:41.897Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-04-16T04:51:23.974Z"},"containers":{"cna":{"title":"ksmbd: fix memory leak in parse_lease_state()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix memory leak in parse_lease_state()\n\nThe previous patch that added bounds check for create lease context\nintroduced a memory leak. When the bounds check fails, the function\nreturns NULL without freeing the previously allocated lease_ctx_info\nstructure.\n\nThis patch fixes the issue by adding kfree(lreq) before returning NULL\nin both boundary check cases."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"629dd37acc336ad778979361c351e782053ea284","status":"affected","lessThan":"facf22c1a394c1e023dab5daf9a494f722771e1c","versionType":"git"},{"version":"60b7207893a8a06c78441934931a08fdad63f18e","status":"affected","lessThan":"af9e2d4732a548db8f6f5a90c2c20a789a3d7240","versionType":"git"},{"version":"800c482c9ef5910f05e3a713943c67cc6c1d4939","status":"affected","lessThan":"2148d34371b06dac696c0497a98a6bf905a51650","versionType":"git"},{"version":"9a1b6ea955e6c7b29939a6d98701202f9d9644ec","status":"affected","lessThan":"829e19ef741d9e9932abdc3bee5466195e0852cf","versionType":"git"},{"version":"bab703ed8472aa9d109c5f8c1863921533363dae","status":"affected","lessThan":"eb4447bcce915b43b691123118893fca4f372a8f","versionType":"git"},{"version":"a41cd52f00907a040ca22c73d4805bb79b0d0972","status":"affected","versionType":"git"},{"version":"6.13.11","status":"affected","lessThan":"6.14","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/smb/server/oplock.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"6.1.134","status":"affected","lessThan":"6.1.139","versionType":"semver"},{"version":"6.6.87","status":"affected","lessThan":"6.6.91","versionType":"semver"},{"version":"6.12.23","status":"affected","lessThan":"6.12.29","versionType":"semver"},{"version":"6.14.2","status":"affected","lessThan":"6.14.7","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/smb/server/oplock.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/facf22c1a394c1e023dab5daf9a494f722771e1c"},{"url":"https://git.kernel.org/stable/c/af9e2d4732a548db8f6f5a90c2c20a789a3d7240"},{"url":"https://git.kernel.org/stable/c/2148d34371b06dac696c0497a98a6bf905a51650"},{"url":"https://git.kernel.org/stable/c/829e19ef741d9e9932abdc3bee5466195e0852cf"},{"url":"https://git.kernel.org/stable/c/eb4447bcce915b43b691123118893fca4f372a8f"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-23T15:58:41.897Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1.134","versionEndExcluding":"6.1.139"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6.87","versionEndExcluding":"6.6.91"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12.23","versionEndExcluding":"6.12.29"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.14.2","versionEndExcluding":"6.14.7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.13.11"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2025-11-03T19:57:47.028Z"}}]}}}