Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: drm/v3d: Add job to pending list if the reset was skipped When a CL/CSD job times out, we check if the GPU has made any progress since the last timeout. If so, instead of resetting the hardware, we skip the reset and let the timer get rearmed. This gives long-running jobs a chance to complete. However, when `timedout_job()` is called, the job in question is removed from the pending list, which means it won't be automatically freed through `free_job()`. Consequently, when we skip the reset and keep the job running, the job won't be freed when it finally completes. This situation leads to a memory leak, as exposed in [1] and [2]. Similarly to commit 704d3d60fec4 ("drm/etnaviv: don't block scheduler when GPU is still active"), this patch ensures the job is put back on the pending list when extending the timeout.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 57692c94dcbe99a1e0444409a3da13fb3443562c before 5235b56b7e5449d990d21d78723b1a5e7bb5738e; affected 57692c94dcbe99a1e0444409a3da13fb3443562c before 12125f7d9c15e6d8ac91d10373b2db2f17dcf767; affected 57692c94dcbe99a1e0444409a3da13fb3443562c before a5f162727b91e480656da1876247a91f651f76de; affected 57692c94dcbe99a1e0444409a3da13fb3443562c before 422a8b10ba42097a704d6909ada2956f880246f2; affected 57692c94dcbe99a1e0444409a3da13fb3443562c before 35e4079bf1a2570abffce6ababa631afcf8ea0e5 |
| Linux / Linux | affected 4.18; unaffected 0 before 4.18; unaffected 6.1.139 through 6.1.*; unaffected 6.6.91 through 6.6.*; unaffected 6.12.29 through 6.12.*; unaffected 6.14.7 through 6.14.*; unaffected 6.15 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/5235b56b7e5449d990d21d78723b1a5e7bb5738e
- https://git.kernel.org/stable/c/12125f7d9c15e6d8ac91d10373b2db2f17dcf767
- https://git.kernel.org/stable/c/a5f162727b91e480656da1876247a91f651f76de
- https://git.kernel.org/stable/c/422a8b10ba42097a704d6909ada2956f880246f2
- https://git.kernel.org/stable/c/35e4079bf1a2570abffce6ababa631afcf8ea0e5
ADP enrichment
No English description supplied.