What happened
In the Linux kernel, the following vulnerability has been resolved: media: chips-media: wave5: Fix Reports from Kernel Lock Validator handle_dynamic_resolution change requires that the state_lock be acquired based on the lockdep_assert_held. However, the handle_dynamic_resolution_change call in initialize_sequence does not properly obtain the lock before calling. Since the v4l2_ctrl_find and s_ctrl can sleep, they should not be called while a lock is already held. Store off the fbc_buf_count then properly update control once lock has been freed.
Affected versions
Linux: 9707a6254a8a6b978bde811a44fe07d86c229d1c through before 629a937091ecf9c5c9f7a18f41cb0e6c778a7b2f (git); 9707a6254a8a6b978bde811a44fe07d86c229d1c through before 072beef6a19f9c84dc5a50c5499663a5734c1096 (git); 9707a6254a8a6b978bde811a44fe07d86c229d1c through before 7d5d364f8b2dcc9b6b92456fb55632fde4a4d96f (git); 6.8 Fixed: See vendor advisory.
Why it matters
Review the vendor advisory and exposure of the affected product to determine operational impact.
Detection & mitigation
- Apply vendor-provided updates or mitigations.
- Review affected product exposure and access logs.
Public PoC references
No public PoC reference has passed the current publication threshold.