{"id":"CVE-2023-53355","state":"PUBLISHED","title":"staging: pi433: fix memory leak with using debugfs_lookup()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: pi433: 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.  This requires saving off the root directory dentry to make\ncreation of individual device subdirectories easier.","publishedAt":"2025-09-17T14:56:45.400Z","updatedAt":"2026-05-11T19:43:20.677Z","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":"874bcba65f9a3a2a304b5f520529c046887c3cdc","status":"affected","lessThan":"04f3cda40e9f6653ae15ed3fcf26ef2860f4df66","versionType":"git"},{"version":"874bcba65f9a3a2a304b5f520529c046887c3cdc","status":"affected","lessThan":"bb16f3102607b69e1a0233f4b73c6e337f86ef8d","versionType":"git"},{"version":"874bcba65f9a3a2a304b5f520529c046887c3cdc","status":"affected","lessThan":"2f36e789e540df6a9fbf471b3a2ba62a8b361586","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/staging/pi433/pi433_if.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.14","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.14","versionType":"semver"},{"version":"6.1.18","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.2.5","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":["drivers/staging/pi433/pi433_if.c"]}],"references":["https://git.kernel.org/stable/c/04f3cda40e9f6653ae15ed3fcf26ef2860f4df66","https://git.kernel.org/stable/c/bb16f3102607b69e1a0233f4b73c6e337f86ef8d","https://git.kernel.org/stable/c/2f36e789e540df6a9fbf471b3a2ba62a8b361586"],"weaknesses":["CWE-401"],"ingestedAt":"2026-10-29T20:06:33.064Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/53xxx/CVE-2023-53355.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-53355","state":"PUBLISHED","datePublished":"2025-09-17T14:56:45.400Z","dateUpdated":"2026-05-11T19:43:20.677Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-09-16T16:08:59.567Z"},"containers":{"cna":{"title":"staging: pi433: fix memory leak with using debugfs_lookup()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: pi433: 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.  This requires saving off the root directory dentry to make\ncreation of individual device subdirectories easier."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"874bcba65f9a3a2a304b5f520529c046887c3cdc","status":"affected","lessThan":"04f3cda40e9f6653ae15ed3fcf26ef2860f4df66","versionType":"git"},{"version":"874bcba65f9a3a2a304b5f520529c046887c3cdc","status":"affected","lessThan":"bb16f3102607b69e1a0233f4b73c6e337f86ef8d","versionType":"git"},{"version":"874bcba65f9a3a2a304b5f520529c046887c3cdc","status":"affected","lessThan":"2f36e789e540df6a9fbf471b3a2ba62a8b361586","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/staging/pi433/pi433_if.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.14","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.14","versionType":"semver"},{"version":"6.1.18","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.2.5","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":["drivers/staging/pi433/pi433_if.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/04f3cda40e9f6653ae15ed3fcf26ef2860f4df66"},{"url":"https://git.kernel.org/stable/c/bb16f3102607b69e1a0233f4b73c6e337f86ef8d"},{"url":"https://git.kernel.org/stable/c/2f36e789e540df6a9fbf471b3a2ba62a8b361586"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:43:20.677Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14","versionEndExcluding":"6.1.18"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14","versionEndExcluding":"6.2.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14","versionEndExcluding":"6.3"}]}]}],"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-2023-53355","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-01-14T18:42:35.728137Z"}}}],"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":"2026-01-14T18:43:04.234Z"}}]}}}