{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "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": "2026-05-23T15:19:11.297Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-23T15:19:11.297Z" }, "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" }, { "version": "4.19.168", "lessThan": "4.19.191", "status": "affected", "versionType": "semver" }, { "version": "5.4.90", "lessThan": "5.4.119", "status": "affected", "versionType": "semver" }, { "version": "5.10.8", "lessThan": "5.10.37", "status": "affected", "versionType": "semver" } ] }, { "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" ] } ] } ] } }