{"cve":"CVE-2022-49801","nvd":{"published":"2025-05-01T15:16:03.407","modified":"2026-06-17T05:19:10.737","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Fix memory leak in tracing_read_pipe()\n\nkmemleak reports this issue:\n\nunreferenced object 0xffff888105a18900 (size 128):\n  comm \"test_progs\", pid 18933, jiffies 4336275356 (age 22801.766s)\n  hex dump (first 32 bytes):\n    25 73 00 90 81 88 ff ff 26 05 00 00 42 01 58 04  %s......&...B.X.\n    03 00 00 00 02 00 00 00 00 00 00 00 00 00 00 00  ................\n  backtrace:\n    [<00000000560143a1>] __kmalloc_node_track_caller+0x4a/0x140\n    [<000000006af00822>] krealloc+0x8d/0xf0\n    [<00000000c309be6a>] trace_iter_expand_format+0x99/0x150\n    [<000000005a53bdb6>] trace_check_vprintf+0x1e0/0x11d0\n    [<0000000065629d9d>] trace_event_printf+0xb6/0xf0\n    [<000000009a690dc7>] trace_raw_output_bpf_trace_printk+0x89/0xc0\n    [<00000000d22db172>] print_trace_line+0x73c/0x1480\n    [<00000000cdba76ba>] tracing_read_pipe+0x45c/0x9f0\n    [<0000000015b58459>] vfs_read+0x17b/0x7c0\n    [<000000004aeee8ed>] ksys_read+0xed/0x1c0\n    [<0000000063d3d898>] do_syscall_64+0x3b/0x90\n    [<00000000a06dda7f>] entry_SYSCALL_64_after_hwframe+0x63/0xcd\n\niter->fmt alloced in\n  tracing_read_pipe() -> .. ->trace_iter_expand_format(), but not\nfreed, to fix, add free in tracing_release_pipe()","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-401"],"references":["https://git.kernel.org/stable/c/2c21ee020ce43d744ecd7f3e9bddfcaafef270ce","https://git.kernel.org/stable/c/649e72070cbbb8600eb823833e4748f5a0815116","https://git.kernel.org/stable/c/a7d3f8f33c113478737bc61bb32ec5f9a987da7d"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:01:22.920403922+00:00"},"epss":{"cve":"CVE-2022-49801","score":0.00199,"percentile":0.09794,"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."]}