{"cve":"CVE-2022-49800","nvd":{"published":"2025-05-01T15:16:03.303","modified":"2026-06-17T05:19:10.603","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Fix memory leak in test_gen_synth_cmd() and test_empty_synth_event()\n\ntest_gen_synth_cmd() only free buf in fail path, hence buf will leak\nwhen there is no failure. Add kfree(buf) to prevent the memleak. The\nsame reason and solution in test_empty_synth_event().\n\nunreferenced object 0xffff8881127de000 (size 2048):\n  comm \"modprobe\", pid 247, jiffies 4294972316 (age 78.756s)\n  hex dump (first 32 bytes):\n    20 67 65 6e 5f 73 79 6e 74 68 5f 74 65 73 74 20   gen_synth_test\n    20 70 69 64 5f 74 20 6e 65 78 74 5f 70 69 64 5f   pid_t next_pid_\n  backtrace:\n    [<000000004254801a>] kmalloc_trace+0x26/0x100\n    [<0000000039eb1cf5>] 0xffffffffa00083cd\n    [<000000000e8c3bc8>] 0xffffffffa00086ba\n    [<00000000c293d1ea>] do_one_initcall+0xdb/0x480\n    [<00000000aa189e6d>] do_init_module+0x1cf/0x680\n    [<00000000d513222b>] load_module+0x6a50/0x70a0\n    [<000000001fd4d529>] __do_sys_finit_module+0x12f/0x1c0\n    [<00000000b36c4c0f>] do_syscall_64+0x3f/0x90\n    [<00000000bbf20cf3>] entry_SYSCALL_64_after_hwframe+0x63/0xcd\nunreferenced object 0xffff8881127df000 (size 2048):\n  comm \"modprobe\", pid 247, jiffies 4294972324 (age 78.728s)\n  hex dump (first 32 bytes):\n    20 65 6d 70 74 79 5f 73 79 6e 74 68 5f 74 65 73   empty_synth_tes\n    74 20 20 70 69 64 5f 74 20 6e 65 78 74 5f 70 69  t  pid_t next_pi\n  backtrace:\n    [<000000004254801a>] kmalloc_trace+0x26/0x100\n    [<00000000d4db9a3d>] 0xffffffffa0008071\n    [<00000000c31354a5>] 0xffffffffa00086ce\n    [<00000000c293d1ea>] do_one_initcall+0xdb/0x480\n    [<00000000aa189e6d>] do_init_module+0x1cf/0x680\n    [<00000000d513222b>] load_module+0x6a50/0x70a0\n    [<000000001fd4d529>] __do_sys_finit_module+0x12f/0x1c0\n    [<00000000b36c4c0f>] do_syscall_64+0x3f/0x90\n    [<00000000bbf20cf3>] entry_SYSCALL_64_after_hwframe+0x63/0xcd","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/07ba4f0603aba288580866394f2916dfe55823a2","https://git.kernel.org/stable/c/0e5baaa181a052d968701bb9c5b1d55847f00942","https://git.kernel.org/stable/c/65ba7e7c241122ef0a9e61d1920f2ae9689aa796","https://git.kernel.org/stable/c/a4527fef9afe5c903c718d0cd24609fe9c754250"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:01:22.920403922+00:00"},"epss":{"cve":"CVE-2022-49800","score":0.00202,"percentile":0.10098,"date":"2026-11-01"},"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."]}