CVE-2026-98973
kernel: drm/bridge: Fix unlocked list_del in drm_bridge_add()
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · October 23, 2026
Updated · October 29, 2026
Description
A flaw was found in the Linux kernel's DRM (Direct Rendering Manager) bridge subsystem. A local attacker could exploit a race condition in the drm_bridge_add() function to cause a Denial of Service (DoS) through a system crash. When re-adding a previously removed display bridge, the function modifies an internal tracking list without acquiring the proper lock, leading to kernel list corruption during concurrent operations.
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 · 4.1CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H
CWE-413 · Improper Resource Locking