{"id":"CVE-2021-47516","details":"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 }","modified":"2026-03-15T22:43:14.546623Z","published":"2024-05-24T15:15:13.130Z","related":["SUSE-SU-2024:2008-1","SUSE-SU-2024:2010-1","SUSE-SU-2024:2011-1","SUSE-SU-2024:2019-1","SUSE-SU-2024:2183-1","SUSE-SU-2024:2185-1","SUSE-SU-2024:2189-1","SUSE-SU-2024:2190-1","SUSE-SU-2024:2892-1","SUSE-SU-2024:2901-1","SUSE-SU-2024:2940-1"],"references":[{"type":"FIX","url":"https://git.kernel.org/stable/c/2e0e072e62fdaf7816220af08e05c020f0fcb77a"},{"type":"FIX","url":"https://git.kernel.org/stable/c/3e93abcdcec0436fbf0b6a88ae806902426895a2"},{"type":"FIX","url":"https://git.kernel.org/stable/c/484069b5de9d223cc1c64c6f80389a99cfef51f1"},{"type":"FIX","url":"https://git.kernel.org/stable/c/c56c96303e9289cc34716b1179597b6f470833de"},{"type":"FIX","url":"https://git.kernel.org/stable/c/eb51f639ef3fd5498b7def290ed8681b6aadd9a7"},{"type":"FIX","url":"https://git.kernel.org/stable/c/f707820c09239d6f67699d9b2ff57863cc7905b0"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-47516.json","unresolved_ranges":[{"events":[{"introduced":"4.11"},{"fixed":"4.14.258"}]},{"events":[{"introduced":"4.15"},{"fixed":"4.19.221"}]},{"events":[{"introduced":"4.20"},{"fixed":"5.4.165"}]},{"events":[{"introduced":"5.5"},{"fixed":"5.10.85"}]},{"events":[{"introduced":"5.11"},{"fixed":"5.15.8"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}