CVE-2025-21834

A flaw was found in the Linux kernel. This vulnerability occurs when uretprobes, a debugging feature that monitors function returns in user-space programs, are used. The kernel's seccomp (secure computing mode) mechanism, which restricts system calls a program can make, incorrectly blocks the uretprobe system call. This improper filtering can cause applications to crash unexpectedly, leading to a denial of service for affected processes, particularly in containerized environments like Docker.

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 for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.