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Change History

In the Linux kernel, the following vulnerability has been resolved:

drm/scheduler: signal scheduled fence when kill job

When an entity from application B is killed, drm_sched_entity_kill()
removes all jobs belonging to that entity through
drm_sched_entity_kill_jobs_work(). If application A's job depends on a
scheduled fence from application B's job, and that fence is not properly
signaled during the killing process, application A's dependency cannot be
cleared.

This leads to application A hanging indefinitely while waiting for a
dependency that will never be resolved. Fix this issue by ensuring that
scheduled fences are properly signaled when an entity is killed, allowing
dependent applications to continue execution.

https://git.kernel.org/stable/c/471db2c2d4f80ee94225a1ef246e4f5011733e50

https://git.kernel.org/stable/c/aa382a8b6ed483e9812d0e63b6d1bdcba0186f29

https://git.kernel.org/stable/c/aefd0a935625165a6ca36d0258d2d053901555df

https://git.kernel.org/stable/c/c5734f9bab6f0d40577ad0633af4090a5fda2407