CVE-2025-39926

A flaw was found in the Linux kernel’s genetlink subsystem. The function genl_bind() could invoke registered bind callbacks even after a capability check failed (returned -EPERM). This could cause those callbacks to execute on behalf of unauthorized callers while the system call still returned failure to user space.

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.