{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-53649","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-10-07T15:16:59.659Z","datePublished":"2025-10-07T15:19:46.459Z","dateUpdated":"2026-05-11T19:49:14.554Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T19:49:14.554Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nperf trace: Really free the evsel->priv area\n\nIn 3cb4d5e00e037c70 (\"perf trace: Free syscall tp fields in\nevsel->priv\") it only was freeing if strcmp(evsel->tp_format->system,\n\"syscalls\") returned zero, while the corresponding initialization of\nevsel->priv was being performed if it was _not_ zero, i.e. if the tp\nsystem wasn't 'syscalls'.\n\nJust stop looking for that and free it if evsel->priv was set, which\nshould be equivalent.\n\nAlso use the pre-existing evsel_trace__delete() function.\n\nThis resolves these leaks, detected with:\n\n  $ make EXTRA_CFLAGS=\"-fsanitize=address\" BUILD_BPF_SKEL=1 CORESIGHT=1 O=/tmp/build/perf-tools-next -C tools/perf install-bin\n\n  =================================================================\n  ==481565==ERROR: LeakSanitizer: detected memory leaks\n\n  Direct leak of 40 byte(s) in 1 object(s) allocated from:\n      #0 0x7f7343cba097 in calloc (/lib64/libasan.so.8+0xba097)\n      #1 0x987966 in zalloc (/home/acme/bin/perf+0x987966)\n      #2 0x52f9b9 in evsel_trace__new /home/acme/git/perf-tools-next/tools/perf/builtin-trace.c:307\n      #3 0x52f9b9 in evsel__syscall_tp /home/acme/git/perf-tools-next/tools/perf/builtin-trace.c:333\n      #4 0x52f9b9 in evsel__init_raw_syscall_tp /home/acme/git/perf-tools-next/tools/perf/builtin-trace.c:458\n      #5 0x52f9b9 in perf_evsel__raw_syscall_newtp /home/acme/git/perf-tools-next/tools/perf/builtin-trace.c:480\n      #6 0x540e8b in trace__add_syscall_newtp /home/acme/git/perf-tools-next/tools/perf/builtin-trace.c:3212\n      #7 0x540e8b in trace__run /home/acme/git/perf-tools-next/tools/perf/builtin-trace.c:3891\n      #8 0x540e8b in cmd_trace /home/acme/git/perf-tools-next/tools/perf/builtin-trace.c:5156\n      #9 0x5ef262 in run_builtin /home/acme/git/perf-tools-next/tools/perf/perf.c:323\n      #10 0x4196da in handle_internal_command /home/acme/git/perf-tools-next/tools/perf/perf.c:377\n      #11 0x4196da in run_argv /home/acme/git/perf-tools-next/tools/perf/perf.c:421\n      #12 0x4196da in main /home/acme/git/perf-tools-next/tools/perf/perf.c:537\n      #13 0x7f7342c4a50f in __libc_start_call_main (/lib64/libc.so.6+0x2750f)\n\n  Direct leak of 40 byte(s) in 1 object(s) allocated from:\n      #0 0x7f7343cba097 in calloc (/lib64/libasan.so.8+0xba097)\n      #1 0x987966 in zalloc (/home/acme/bin/perf+0x987966)\n      #2 0x52f9b9 in evsel_trace__new /home/acme/git/perf-tools-next/tools/perf/builtin-trace.c:307\n      #3 0x52f9b9 in evsel__syscall_tp /home/acme/git/perf-tools-next/tools/perf/builtin-trace.c:333\n      #4 0x52f9b9 in evsel__init_raw_syscall_tp /home/acme/git/perf-tools-next/tools/perf/builtin-trace.c:458\n      #5 0x52f9b9 in perf_evsel__raw_syscall_newtp /home/acme/git/perf-tools-next/tools/perf/builtin-trace.c:480\n      #6 0x540dd1 in trace__add_syscall_newtp /home/acme/git/perf-tools-next/tools/perf/builtin-trace.c:3205\n      #7 0x540dd1 in trace__run /home/acme/git/perf-tools-next/tools/perf/builtin-trace.c:3891\n      #8 0x540dd1 in cmd_trace /home/acme/git/perf-tools-next/tools/perf/builtin-trace.c:5156\n      #9 0x5ef262 in run_builtin /home/acme/git/perf-tools-next/tools/perf/perf.c:323\n      #10 0x4196da in handle_internal_command /home/acme/git/perf-tools-next/tools/perf/perf.c:377\n      #11 0x4196da in run_argv /home/acme/git/perf-tools-next/tools/perf/perf.c:421\n      #12 0x4196da in main /home/acme/git/perf-tools-next/tools/perf/perf.c:537\n      #13 0x7f7342c4a50f in __libc_start_call_main (/lib64/libc.so.6+0x2750f)\n\n  SUMMARY: AddressSanitizer: 80 byte(s) leaked in 2 allocation(s).\n  [root@quaco ~]#\n\nWith this we plug all leaks with \"perf trace sleep 1\"."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["tools/perf/builtin-trace.c"],"versions":[{"version":"3cb4d5e00e037c70f239173bdd399a7e6040830f","lessThan":"c3bc668581e71e7c3bc7eb1d647f25f8db222163","status":"affected","versionType":"git"},{"version":"3cb4d5e00e037c70f239173bdd399a7e6040830f","lessThan":"62dd514c34be63d3d5cae1f52a7e8b96c6dd6630","status":"affected","versionType":"git"},{"version":"3cb4d5e00e037c70f239173bdd399a7e6040830f","lessThan":"27f396f64537b1ae48d0644d7cbf0d250b3c0b33","status":"affected","versionType":"git"},{"version":"3cb4d5e00e037c70f239173bdd399a7e6040830f","lessThan":"7962ef13651a9163f07b530607392ea123482e8a","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["tools/perf/builtin-trace.c"],"versions":[{"version":"5.14","status":"affected"},{"version":"0","lessThan":"5.14","status":"unaffected","versionType":"semver"},{"version":"5.15.132","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.54","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.5.4","lessThanOrEqual":"6.5.*","status":"unaffected","versionType":"semver"},{"version":"6.6","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":"5.14","versionEndExcluding":"5.15.132"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"6.1.54"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"6.5.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"6.6"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/c3bc668581e71e7c3bc7eb1d647f25f8db222163"},{"url":"https://git.kernel.org/stable/c/62dd514c34be63d3d5cae1f52a7e8b96c6dd6630"},{"url":"https://git.kernel.org/stable/c/27f396f64537b1ae48d0644d7cbf0d250b3c0b33"},{"url":"https://git.kernel.org/stable/c/7962ef13651a9163f07b530607392ea123482e8a"}],"title":"perf trace: Really free the evsel->priv area","x_generator":{"engine":"bippy-1.2.0"}}}}