{"id":"CVE-2021-47654","state":"PUBLISHED","title":"samples/landlock: Fix path_list memory leak","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nsamples/landlock: Fix path_list memory leak\n\nClang static analysis reports this error\n\nsandboxer.c:134:8: warning: Potential leak of memory\n  pointed to by 'path_list'\n        ret = 0;\n              ^\npath_list is allocated in parse_path() but never freed.","publishedAt":"2025-02-26T01:54:19.083Z","updatedAt":"2026-05-11T13:58:41.074Z","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":"ba84b0bf5a164f0f523656c1e37568c30f3f3303","status":"affected","lessThan":"20fbf100f84b9aeb9c91421abe1927bc152bc32b","versionType":"git"},{"version":"ba84b0bf5a164f0f523656c1e37568c30f3f3303","status":"affected","lessThan":"49b0d8bf05809df5f87e5c03e26d74bdfdab4571","versionType":"git"},{"version":"ba84b0bf5a164f0f523656c1e37568c30f3f3303","status":"affected","lessThan":"017196730299ccd6eed24bbfabed8af4ffd81530","versionType":"git"},{"version":"ba84b0bf5a164f0f523656c1e37568c30f3f3303","status":"affected","lessThan":"66b513b7c64a7290c1fbb88e657f7cece992e131","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["samples/landlock/sandboxer.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.13","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.13","versionType":"semver"},{"version":"5.15.33","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"5.16.19","status":"unaffected","lessThanOrEqual":"5.16.*","versionType":"semver"},{"version":"5.17.2","status":"unaffected","lessThanOrEqual":"5.17.*","versionType":"semver"},{"version":"5.18","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["samples/landlock/sandboxer.c"]}],"references":["https://git.kernel.org/stable/c/20fbf100f84b9aeb9c91421abe1927bc152bc32b","https://git.kernel.org/stable/c/49b0d8bf05809df5f87e5c03e26d74bdfdab4571","https://git.kernel.org/stable/c/017196730299ccd6eed24bbfabed8af4ffd81530","https://git.kernel.org/stable/c/66b513b7c64a7290c1fbb88e657f7cece992e131"],"weaknesses":["CWE-401"],"ingestedAt":"2026-10-29T19:49:19.404Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/47xxx/CVE-2021-47654.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2021-47654","state":"PUBLISHED","datePublished":"2025-02-26T01:54:19.083Z","dateUpdated":"2026-05-11T13:58:41.074Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-02-26T01:48:21.520Z"},"containers":{"cna":{"title":"samples/landlock: 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freed."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"ba84b0bf5a164f0f523656c1e37568c30f3f3303","status":"affected","lessThan":"20fbf100f84b9aeb9c91421abe1927bc152bc32b","versionType":"git"},{"version":"ba84b0bf5a164f0f523656c1e37568c30f3f3303","status":"affected","lessThan":"49b0d8bf05809df5f87e5c03e26d74bdfdab4571","versionType":"git"},{"version":"ba84b0bf5a164f0f523656c1e37568c30f3f3303","status":"affected","lessThan":"017196730299ccd6eed24bbfabed8af4ffd81530","versionType":"git"},{"version":"ba84b0bf5a164f0f523656c1e37568c30f3f3303","status":"affected","lessThan":"66b513b7c64a7290c1fbb88e657f7cece992e131","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["samples/landlock/sandboxer.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.13","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.13","versionType":"semver"},{"version":"5.15.33","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"5.16.19","status":"unaffected","lessThanOrEqual":"5.16.*","versionType":"semver"},{"version":"5.17.2","status":"unaffected","lessThanOrEqual":"5.17.*","versionType":"semver"},{"version":"5.18","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["samples/landlock/sandboxer.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/20fbf100f84b9aeb9c91421abe1927bc152bc32b"},{"url":"https://git.kernel.org/stable/c/49b0d8bf05809df5f87e5c03e26d74bdfdab4571"},{"url":"https://git.kernel.org/stable/c/017196730299ccd6eed24bbfabed8af4ffd81530"},{"url":"https://git.kernel.org/stable/c/66b513b7c64a7290c1fbb88e657f7cece992e131"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T13:58:41.074Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"5.15.33"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"5.16.19"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"5.17.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"5.18"}]}]}],"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-2021-47654","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2025-10-01T19:50:18.388284Z"}}}],"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":"2025-10-01T19:57:07.227Z"}}]}}}