{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-54171","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-12-30T12:06:44.496Z","datePublished":"2025-12-30T12:08:45.441Z","dateUpdated":"2026-05-11T19:56:49.388Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T19:56:49.388Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Fix memory leak of iter->temp when reading trace_pipe\n\nkmemleak reports:\n  unreferenced object 0xffff88814d14e200 (size 256):\n    comm \"cat\", pid 336, jiffies 4294871818 (age 779.490s)\n    hex dump (first 32 bytes):\n      04 00 01 03 00 00 00 00 08 00 00 00 00 00 00 00  ................\n      0c d8 c8 9b ff ff ff ff 04 5a ca 9b ff ff ff ff  .........Z......\n    backtrace:\n      [<ffffffff9bdff18f>] __kmalloc+0x4f/0x140\n      [<ffffffff9bc9238b>] trace_find_next_entry+0xbb/0x1d0\n      [<ffffffff9bc9caef>] trace_print_lat_context+0xaf/0x4e0\n      [<ffffffff9bc94490>] print_trace_line+0x3e0/0x950\n      [<ffffffff9bc95499>] tracing_read_pipe+0x2d9/0x5a0\n      [<ffffffff9bf03a43>] vfs_read+0x143/0x520\n      [<ffffffff9bf04c2d>] ksys_read+0xbd/0x160\n      [<ffffffff9d0f0edf>] do_syscall_64+0x3f/0x90\n      [<ffffffff9d2000aa>] entry_SYSCALL_64_after_hwframe+0x6e/0xd8\n\nwhen reading file 'trace_pipe', 'iter->temp' is allocated or relocated\nin trace_find_next_entry() but not freed before 'trace_pipe' is closed.\n\nTo fix it, free 'iter->temp' in tracing_release_pipe()."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/trace/trace.c"],"versions":[{"version":"ff895103a84abc85a5f43ecabc7f67cf36e1348f","lessThan":"1a1e793e021d75cd0accd8f329ec9456e5cd105e","status":"affected","versionType":"git"},{"version":"ff895103a84abc85a5f43ecabc7f67cf36e1348f","lessThan":"954792db9f61b6c0b8a94b8831fed5f146014029","status":"affected","versionType":"git"},{"version":"ff895103a84abc85a5f43ecabc7f67cf36e1348f","lessThan":"be970e22c53d5572b2795b79da9716ada937023b","status":"affected","versionType":"git"},{"version":"ff895103a84abc85a5f43ecabc7f67cf36e1348f","lessThan":"3f42d57a76e7e96585f08855554e002218cbca0c","status":"affected","versionType":"git"},{"version":"ff895103a84abc85a5f43ecabc7f67cf36e1348f","lessThan":"d5a821896360cc8b93a15bd888fabc858c038dc0","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/trace/trace.c"],"versions":[{"version":"5.7","status":"affected"},{"version":"0","lessThan":"5.7","status":"unaffected","versionType":"semver"},{"version":"5.10.188","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.121","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.40","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.4.5","lessThanOrEqual":"6.4.*","status":"unaffected","versionType":"semver"},{"version":"6.5","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":"5.7","versionEndExcluding":"5.10.188"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.7","versionEndExcluding":"5.15.121"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.7","versionEndExcluding":"6.1.40"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.7","versionEndExcluding":"6.4.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.7","versionEndExcluding":"6.5"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/1a1e793e021d75cd0accd8f329ec9456e5cd105e"},{"url":"https://git.kernel.org/stable/c/954792db9f61b6c0b8a94b8831fed5f146014029"},{"url":"https://git.kernel.org/stable/c/be970e22c53d5572b2795b79da9716ada937023b"},{"url":"https://git.kernel.org/stable/c/3f42d57a76e7e96585f08855554e002218cbca0c"},{"url":"https://git.kernel.org/stable/c/d5a821896360cc8b93a15bd888fabc858c038dc0"}],"title":"tracing: Fix memory leak of iter->temp when reading trace_pipe","x_generator":{"engine":"bippy-1.2.0"}}}}