{"id":"CVE-2023-53793","summary":"perf tool x86: Fix perf_env memory leak","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nperf tool x86: Fix perf_env memory leak\n\nFound by leak sanitizer:\n```\n==1632594==ERROR: LeakSanitizer: detected memory leaks\n\nDirect leak of 21 byte(s) in 1 object(s) allocated from:\n    #0 0x7f2953a7077b in __interceptor_strdup ../../../../src/libsanitizer/asan/asan_interceptors.cpp:439\n    #1 0x556701d6fbbf in perf_env__read_cpuid util/env.c:369\n    #2 0x556701d70589 in perf_env__cpuid util/env.c:465\n    #3 0x55670204bba2 in x86__is_amd_cpu arch/x86/util/env.c:14\n    #4 0x5567020487a2 in arch__post_evsel_config arch/x86/util/evsel.c:83\n    #5 0x556701d8f78b in evsel__config util/evsel.c:1366\n    #6 0x556701ef5872 in evlist__config util/record.c:108\n    #7 0x556701cd6bcd in test__PERF_RECORD tests/perf-record.c:112\n    #8 0x556701cacd07 in run_test tests/builtin-test.c:236\n    #9 0x556701cacfac in test_and_print tests/builtin-test.c:265\n    #10 0x556701cadddb in __cmd_test tests/builtin-test.c:402\n    #11 0x556701caf2aa in cmd_test tests/builtin-test.c:559\n    #12 0x556701d3b557 in run_builtin tools/perf/perf.c:323\n    #13 0x556701d3bac8 in handle_internal_command tools/perf/perf.c:377\n    #14 0x556701d3be90 in run_argv tools/perf/perf.c:421\n    #15 0x556701d3c3f8 in main tools/perf/perf.c:537\n    #16 0x7f2952a46189 in __libc_start_call_main ../sysdeps/nptl/libc_start_call_main.h:58\n\nSUMMARY: AddressSanitizer: 21 byte(s) leaked in 1 allocation(s).\n```","modified":"2026-04-02T09:45:13.375862Z","published":"2025-12-09T00:00:50.132Z","related":["SUSE-SU-2026:0278-1","SUSE-SU-2026:0281-1","SUSE-SU-2026:0293-1","SUSE-SU-2026:0315-1","SUSE-SU-2026:20477-1","SUSE-SU-2026:20498-1","SUSE-SU-2026:20845-1","SUSE-SU-2026:20876-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53793.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/010139bfc6bb9ddab81dbc2cf71cd3a9c28adc7f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/75d65c1cc439606ada882755fd205d13c2c7907d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/99d4850062a84564f36923764bb93935ef2ed108"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f3daf02a41e3c11e1a473517a8a6169248fb8e7b"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53793.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-53793"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"f7b58cbdb3ff36eba8622e67eee66c10dd1c9995"},{"fixed":"75d65c1cc439606ada882755fd205d13c2c7907d"},{"fixed":"010139bfc6bb9ddab81dbc2cf71cd3a9c28adc7f"},{"fixed":"f3daf02a41e3c11e1a473517a8a6169248fb8e7b"},{"fixed":"99d4850062a84564f36923764bb93935ef2ed108"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53793.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.1.0"},{"fixed":"6.1.39"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.3.13"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.4.0"},{"fixed":"6.4.4"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53793.json"}}],"schema_version":"1.7.5"}