Description
In the Linux kernel, the following vulnerability has been resolved:
accel/rocket: Fix error path handling in rocket_job_run()
In rocket_job_run(), after taking an extra fence reference for job->done_fence via dma_fence_get(), the error paths have three bugs:
- The dma_fence reference held by job->done_fence is never released, causing a reference leak. - pm_runtime_get_sync() increments the usage counter even on failure, but the error path does not decrement it, leaking the runtime PM reference and preventing the NPU from suspending. - A valid but unsignaled fence is returned to the DRM scheduler, which triggers WARN("Fence ... released with pending signals!") when the scheduler drops its reference.
Fix by replacing pm_runtime_get_sync() with pm_runtime_resume_and_get() which auto-balances the usage counter on failure, releasing both fence references on error, and returning ERR_PTR(ret) instead of the unsignaled fence.
[tomeu: Refactored error paths to use consolidated goto labels]
Metrics
No CVSS score has been published yet.
Affected software
Source: the vendor's advisory (CNA). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 0810d5ad88a18f1e6d549853a388ad0316f74e36, < 9ad8821573a36bcd18c84dbca3027802b0ea062f; >= 0810d5ad88a18f1e6d549853a388ad0316f74e36, < 7d6fa298c23495b805004f5f446497b661998fa5; >= 0810d5ad88a18f1e6d549853a388ad0316f74e36, < 9b2dedadf6a91ac3fc9fae268bb556a041222711 |
| Linux | Linux | 6.18 |
References
Timeline
- Published
- Sep 11, 2026
- Last modified
- Oct 19, 2026
- NVD status
- Received