{"id":"CVE-2023-53408","state":"PUBLISHED","title":"trace/blktrace: fix memory leak with using debugfs_lookup()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ntrace/blktrace: fix memory leak with using debugfs_lookup()\n\nWhen calling debugfs_lookup() the result must have dput() called on it,\notherwise the memory will leak over time.  To make things simpler, just\ncall debugfs_lookup_and_remove() instead which handles all of the logic\nat once.","publishedAt":"2025-09-18T13:58:46.767Z","updatedAt":"2026-05-23T15:28:48.312Z","severity":{"score":5.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","source":"CISA-ADP"},"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"78acc7dbd84a8c173a08584750845c31611160f2","status":"affected","lessThan":"a2e4b48d6f9b39aa19bafe223f9dd436a692fc80","versionType":"git"},{"version":"30939293262eb433c960c4532a0d59c4073b2b84","status":"affected","lessThan":"3036f5f5ae5210797d95446795df01c1249af9ad","versionType":"git"},{"version":"30939293262eb433c960c4532a0d59c4073b2b84","status":"affected","lessThan":"5286b72fb425291af5f4ca7285d73c16a08d8691","versionType":"git"},{"version":"30939293262eb433c960c4532a0d59c4073b2b84","status":"affected","lessThan":"83e8864fee26f63a7435e941b7c36a20fd6fe93e","versionType":"git"},{"version":"6418634238ade86f2b08192928787f39d8afb58c","status":"affected","versionType":"git"},{"version":"5.15.27","status":"affected","lessThan":"5.15.99","versionType":"semver"},{"version":"5.16.13","status":"affected","lessThan":"5.17","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/trace/blktrace.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.17","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.17","versionType":"semver"},{"version":"5.15.99","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.16","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.2.3","status":"unaffected","lessThanOrEqual":"6.2.*","versionType":"semver"},{"version":"6.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/trace/blktrace.c"]}],"references":["https://git.kernel.org/stable/c/a2e4b48d6f9b39aa19bafe223f9dd436a692fc80","https://git.kernel.org/stable/c/3036f5f5ae5210797d95446795df01c1249af9ad","https://git.kernel.org/stable/c/5286b72fb425291af5f4ca7285d73c16a08d8691","https://git.kernel.org/stable/c/83e8864fee26f63a7435e941b7c36a20fd6fe93e"],"weaknesses":["CWE-401"],"ingestedAt":"2026-10-29T20:06:33.064Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/53xxx/CVE-2023-53408.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-53408","state":"PUBLISHED","datePublished":"2025-09-18T13:58:46.767Z","dateUpdated":"2026-05-23T15:28:48.312Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-09-17T14:54:09.739Z"},"containers":{"cna":{"title":"trace/blktrace: fix memory leak with using debugfs_lookup()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ntrace/blktrace: fix memory leak with using debugfs_lookup()\n\nWhen calling debugfs_lookup() the result must have dput() called on it,\notherwise the memory will leak over time.  To make things simpler, just\ncall debugfs_lookup_and_remove() instead which handles all of the logic\nat once."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"78acc7dbd84a8c173a08584750845c31611160f2","status":"affected","lessThan":"a2e4b48d6f9b39aa19bafe223f9dd436a692fc80","versionType":"git"},{"version":"30939293262eb433c960c4532a0d59c4073b2b84","status":"affected","lessThan":"3036f5f5ae5210797d95446795df01c1249af9ad","versionType":"git"},{"version":"30939293262eb433c960c4532a0d59c4073b2b84","status":"affected","lessThan":"5286b72fb425291af5f4ca7285d73c16a08d8691","versionType":"git"},{"version":"30939293262eb433c960c4532a0d59c4073b2b84","status":"affected","lessThan":"83e8864fee26f63a7435e941b7c36a20fd6fe93e","versionType":"git"},{"version":"6418634238ade86f2b08192928787f39d8afb58c","status":"affected","versionType":"git"},{"version":"5.15.27","status":"affected","lessThan":"5.15.99","versionType":"semver"},{"version":"5.16.13","status":"affected","lessThan":"5.17","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/trace/blktrace.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.17","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.17","versionType":"semver"},{"version":"5.15.99","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.16","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.2.3","status":"unaffected","lessThanOrEqual":"6.2.*","versionType":"semver"},{"version":"6.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/trace/blktrace.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/a2e4b48d6f9b39aa19bafe223f9dd436a692fc80"},{"url":"https://git.kernel.org/stable/c/3036f5f5ae5210797d95446795df01c1249af9ad"},{"url":"https://git.kernel.org/stable/c/5286b72fb425291af5f4ca7285d73c16a08d8691"},{"url":"https://git.kernel.org/stable/c/83e8864fee26f63a7435e941b7c36a20fd6fe93e"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-23T15:28:48.312Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15.27","versionEndExcluding":"5.15.99"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.17","versionEndExcluding":"6.1.16"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.17","versionEndExcluding":"6.2.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.17","versionEndExcluding":"6.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16.13"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","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-2023-53408","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-01-14T19:03:34.354355Z"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-401","lang":"en","type":"CWE","description":"CWE-401 Missing Release of Memory after Effective Lifetime"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-01-14T19:13:05.791Z"}}]}}}