CVE-2026-46196
kernel: tracepoint: balance regfunc() on func_add() failure in tracepoint_add_func()
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · May 28, 2026
Updated · June 28, 2026
Description
A flaw was found in the Linux kernel. When a tracepoint (a mechanism for dynamic instrumentation) is registered, a failure during the probe installation process can lead to the registration's side effects persisting without a corresponding probe. This can cause a Denial of Service (DoS) by leaving system resources in an inconsistent state, specifically by increasing syscall trace entry/exit overhead for all tasks until the system is rebooted.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-459 · Incomplete Cleanup