CVE-2026-98973 drm/bridge: Fix unlocked list_del in drm_bridge_add()
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2026-98973?
CVE-2026-98973 is a vulnerability in Linux, published on 23 Oct 2026.
Official description
In the Linux kernel, the following vulnerability has been resolved:
drm/bridge: Fix unlocked list_del in drm_bridge_add()
When re-adding a bridge that was previously removed, drm_bridge_add() drops it from bridge_lingering_list without holding bridge_lock.
Both bridge_list and bridge_lingering_list are protected by bridge_lock, as they are concurrently modified by drm_bridge_remove() and __drm_bridge_free(), and walked by the debugfs 'bridges' file. Running the list_empty() test and the list_del_init() outside of the lock may therefore corrupt either list.
Perform both under bridge_lock.
Which versions are affected by CVE-2026-98973?
How do I fix CVE-2026-98973?
Upgrade to a fixed version.
Is CVE-2026-98973 being exploited?
There is no known exploitation of CVE-2026-98973 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-98973, GHSA-69cp-rcr3-v67w, UBUNTU-CVE-2026-98973.