CVE-2026-46264
Linux · Kernel
A memory management error in the Linux kernel DRM/XE driver during sysfs initialization can result in improper cleanup actions on uninitialized objects.
Executive summary
A high-severity memory management flaw in the Linux kernel DRM/XE driver could potentially lead to system instability or security degradation due to improper resource handling.
Vulnerability
This vulnerability occurs in the drm/xe/pf driver when devm_add_action_or_reset() fails. The cleanup logic attempts to operate on a kobject before it has been fully initialized, leading to inconsistent system states.
Business impact
Kernel-level vulnerabilities are critical as they reside at the core of the operating system. With a CVSS score of 8.8, this flaw could potentially be leveraged for local privilege escalation or system crashes, resulting in significant operational downtime and potential compromise of system-wide security policies.
Remediation
Immediate Action: Apply the latest Linux kernel security patches provided by your distribution vendor as soon as they become available.
Proactive Monitoring: Monitor system logs (dmesg, syslog) for kernel panic events, memory access violations, or driver-related initialization errors.
Compensating Controls: Maintain a minimal attack surface by disabling unnecessary kernel modules and ensuring that the system is running with hardened configurations (e.g., SELinux or AppArmor).
Exploitation status
Public Exploit Available: false
Analyst recommendation
Kernel vulnerabilities require immediate attention to maintain system integrity. Administrators should verify their distribution's kernel version and apply the relevant security patches immediately upon release to prevent local exploitation and ensure system stability.