{"cve":"CVE-2022-49891","nvd":{"published":"2025-05-01T15:16:14.107","modified":"2026-06-17T05:19:26.240","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: kprobe: Fix memory leak in test_gen_kprobe/kretprobe_cmd()\n\ntest_gen_kprobe_cmd() only free buf in fail path, hence buf will leak\nwhen there is no failure. Move kfree(buf) from fail path to common path\nto prevent the memleak. The same reason and solution in\ntest_gen_kretprobe_cmd().\n\nunreferenced object 0xffff888143b14000 (size 2048):\n  comm \"insmod\", pid 52490, jiffies 4301890980 (age 40.553s)\n  hex dump (first 32 bytes):\n    70 3a 6b 70 72 6f 62 65 73 2f 67 65 6e 5f 6b 70  p:kprobes/gen_kp\n    72 6f 62 65 5f 74 65 73 74 20 64 6f 5f 73 79 73  robe_test do_sys\n  backtrace:\n    [<000000006d7b836b>] kmalloc_trace+0x27/0xa0\n    [<0000000009528b5b>] 0xffffffffa059006f\n    [<000000008408b580>] do_one_initcall+0x87/0x2a0\n    [<00000000c4980a7e>] do_init_module+0xdf/0x320\n    [<00000000d775aad0>] load_module+0x3006/0x3390\n    [<00000000e9a74b80>] __do_sys_finit_module+0x113/0x1b0\n    [<000000003726480d>] do_syscall_64+0x35/0x80\n    [<000000003441e93b>] entry_SYSCALL_64_after_hwframe+0x46/0xb0","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/66f0919c953ef7b55e5ab94389a013da2ce80a2c","https://git.kernel.org/stable/c/71aeb8d01a8c7ab5cf7da3f81b35206f56ce6bca","https://git.kernel.org/stable/c/bef08acbe560a926b4cee9cc46404cc98ae5703b","https://git.kernel.org/stable/c/d1b6a8e3414aeaa0985139180c145d2d0fbd2a49"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:01:22.920403922+00:00"},"epss":{"cve":"CVE-2022-49891","score":0.00202,"percentile":0.10106,"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."]}