Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 17805a15d1751f5d6bb06f924f9bed216feb8db7 before f469d850854101eae60dd4080244f114a9bcf2b5; affected 17805a15d1751f5d6bb06f924f9bed216feb8db7 before b62e3db8cdc1680e1c3390591e872f485148541a |
| Linux / Linux | affected 6.19; unaffected 0 before 6.19; unaffected 7.2.11 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.