{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-47058","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-02-29T22:33:44.294Z","datePublished":"2024-02-29T22:37:33.232Z","dateUpdated":"2025-05-04T07:03:20.494Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T07:03:20.494Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nregmap: set debugfs_name to NULL after it is freed\n\nThere is a upstream commit cffa4b2122f5(\"regmap:debugfs:\nFix a memory leak when calling regmap_attach_dev\") that\nadds a if condition when create name for debugfs_name.\nWith below function invoking logical, debugfs_name is\nfreed in regmap_debugfs_exit(), but it is not created again\nbecause of the if condition introduced by above commit.\nregmap_reinit_cache()\n\tregmap_debugfs_exit()\n\t...\n\tregmap_debugfs_init()\nSo, set debugfs_name to NULL after it is freed."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/base/regmap/regmap-debugfs.c"],"versions":[{"version":"5b654b03007917f3f1015b2a5c288c1ea6ae8f65","lessThan":"2dc1554d5f0fdaf47cc5bea442b84b9226fea867","status":"affected","versionType":"git"},{"version":"480c5e9c7e4c76c01d5f1f7b73832d7b77e6b427","lessThan":"d8897f7b2283a500666c85ef06e820df38ed7b52","status":"affected","versionType":"git"},{"version":"c9698380b01aed3281160d3ab25749b57d6913b8","lessThan":"eb949f891226c012138ffd9df90d1e509f428ae6","status":"affected","versionType":"git"},{"version":"cffa4b2122f5f3e53cf3d529bbc74651f95856d5","lessThan":"c764e375ae647832de1ee73d43a4bb3ef8a8f43d","status":"affected","versionType":"git"},{"version":"cffa4b2122f5f3e53cf3d529bbc74651f95856d5","lessThan":"b9e569ae1da3a113b3acee8703c94777fd20938a","status":"affected","versionType":"git"},{"version":"cffa4b2122f5f3e53cf3d529bbc74651f95856d5","lessThan":"e41a962f82e7afb5b1ee644f48ad0b3aee656268","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/base/regmap/regmap-debugfs.c"],"versions":[{"version":"5.11","status":"affected"},{"version":"0","lessThan":"5.11","status":"unaffected","versionType":"semver"},{"version":"4.19.191","lessThanOrEqual":"4.19.*","status":"unaffected","versionType":"semver"},{"version":"5.4.119","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.37","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.11.21","lessThanOrEqual":"5.11.*","status":"unaffected","versionType":"semver"},{"version":"5.12.4","lessThanOrEqual":"5.12.*","status":"unaffected","versionType":"semver"},{"version":"5.13","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":"4.19.168","versionEndExcluding":"4.19.191"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4.90","versionEndExcluding":"5.4.119"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10.8","versionEndExcluding":"5.10.37"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"5.11.21"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"5.12.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"5.13"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/2dc1554d5f0fdaf47cc5bea442b84b9226fea867"},{"url":"https://git.kernel.org/stable/c/d8897f7b2283a500666c85ef06e820df38ed7b52"},{"url":"https://git.kernel.org/stable/c/eb949f891226c012138ffd9df90d1e509f428ae6"},{"url":"https://git.kernel.org/stable/c/c764e375ae647832de1ee73d43a4bb3ef8a8f43d"},{"url":"https://git.kernel.org/stable/c/b9e569ae1da3a113b3acee8703c94777fd20938a"},{"url":"https://git.kernel.org/stable/c/e41a962f82e7afb5b1ee644f48ad0b3aee656268"}],"title":"regmap: set debugfs_name to NULL after it is freed","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2021-47058","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-03-01T15:52:46.074960Z"}}}],"providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-06-04T17:14:13.511Z"}},{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-04T05:24:39.586Z"},"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/2dc1554d5f0fdaf47cc5bea442b84b9226fea867","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/d8897f7b2283a500666c85ef06e820df38ed7b52","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/eb949f891226c012138ffd9df90d1e509f428ae6","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/c764e375ae647832de1ee73d43a4bb3ef8a8f43d","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/b9e569ae1da3a113b3acee8703c94777fd20938a","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/e41a962f82e7afb5b1ee644f48ad0b3aee656268","tags":["x_transferred"]}]}]}}