{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2021-47516", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-05-24T15:02:54.824Z", "datePublished": "2024-05-24T15:09:30.022Z", "dateUpdated": "2026-05-11T13:56:10.428Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T13:56:10.428Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfp: Fix memory leak in nfp_cpp_area_cache_add()\n\nIn line 800 (#1), nfp_cpp_area_alloc() allocates and initializes a\nCPP area structure. But in line 807 (#2), when the cache is allocated\nfailed, this CPP area structure is not freed, which will result in\nmemory leak.\n\nWe can fix it by freeing the CPP area when the cache is allocated\nfailed (#2).\n\n792 int nfp_cpp_area_cache_add(struct nfp_cpp *cpp, size_t size)\n793 {\n794 \tstruct nfp_cpp_area_cache *cache;\n795 \tstruct nfp_cpp_area *area;\n\n800\tarea = nfp_cpp_area_alloc(cpp, NFP_CPP_ID(7, NFP_CPP_ACTION_RW, 0),\n801 \t\t\t\t 0, size);\n\t// #1: allocates and initializes\n\n802 \tif (!area)\n803 \t\treturn -ENOMEM;\n\n805 \tcache = kzalloc(sizeof(*cache), GFP_KERNEL);\n806 \tif (!cache)\n807 \t\treturn -ENOMEM; // #2: missing free\n\n817\treturn 0;\n818 }" } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c" ], "versions": [ { "version": "4cb584e0ee7df70fd0376aee60cf701855ea8c81", "lessThan": "3e93abcdcec0436fbf0b6a88ae806902426895a2", "status": "affected", "versionType": "git" }, { "version": "4cb584e0ee7df70fd0376aee60cf701855ea8c81", "lessThan": "eb51f639ef3fd5498b7def290ed8681b6aadd9a7", "status": "affected", "versionType": "git" }, { "version": "4cb584e0ee7df70fd0376aee60cf701855ea8c81", "lessThan": "2e0e072e62fdaf7816220af08e05c020f0fcb77a", "status": "affected", "versionType": "git" }, { "version": "4cb584e0ee7df70fd0376aee60cf701855ea8c81", "lessThan": "484069b5de9d223cc1c64c6f80389a99cfef51f1", "status": "affected", "versionType": "git" }, { "version": "4cb584e0ee7df70fd0376aee60cf701855ea8c81", "lessThan": "f707820c09239d6f67699d9b2ff57863cc7905b0", "status": "affected", "versionType": "git" }, { "version": "4cb584e0ee7df70fd0376aee60cf701855ea8c81", "lessThan": "c56c96303e9289cc34716b1179597b6f470833de", "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/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c" ], "versions": [ { "version": "4.11", "status": "affected" }, { "version": "0", "lessThan": "4.11", "status": "unaffected", "versionType": "semver" }, { "version": "4.14.258", "lessThanOrEqual": "4.14.*", "status": "unaffected", "versionType": "semver" }, { "version": "4.19.221", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.165", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.85", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.8", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.16", "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": "4.11", "versionEndExcluding": "4.14.258" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.11", "versionEndExcluding": "4.19.221" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.11", "versionEndExcluding": "5.4.165" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.11", "versionEndExcluding": "5.10.85" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.11", "versionEndExcluding": "5.15.8" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.11", "versionEndExcluding": "5.16" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/3e93abcdcec0436fbf0b6a88ae806902426895a2" }, { "url": "https://git.kernel.org/stable/c/eb51f639ef3fd5498b7def290ed8681b6aadd9a7" }, { "url": "https://git.kernel.org/stable/c/2e0e072e62fdaf7816220af08e05c020f0fcb77a" }, { "url": "https://git.kernel.org/stable/c/484069b5de9d223cc1c64c6f80389a99cfef51f1" }, { "url": "https://git.kernel.org/stable/c/f707820c09239d6f67699d9b2ff57863cc7905b0" }, { "url": "https://git.kernel.org/stable/c/c56c96303e9289cc34716b1179597b6f470833de" } ], "title": "nfp: Fix memory leak in nfp_cpp_area_cache_add()", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:39:59.775Z" }, "title": "CVE Program Container", "references": [ { "url": "https://git.kernel.org/stable/c/3e93abcdcec0436fbf0b6a88ae806902426895a2", "tags": [ "x_transferred" ] }, { "url": 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