{"cve":"CVE-2023-54171","nvd":{"published":"2025-12-30T13:16:04.940","modified":"2026-06-17T06:46:56.093","status":"Deferred","description":"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().","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/1a1e793e021d75cd0accd8f329ec9456e5cd105e","https://git.kernel.org/stable/c/3f42d57a76e7e96585f08855554e002218cbca0c","https://git.kernel.org/stable/c/954792db9f61b6c0b8a94b8831fed5f146014029","https://git.kernel.org/stable/c/be970e22c53d5572b2795b79da9716ada937023b","https://git.kernel.org/stable/c/d5a821896360cc8b93a15bd888fabc858c038dc0"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:18:08.089039631+00:00"},"epss":{"cve":"CVE-2023-54171","score":0.00201,"percentile":0.1003,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}