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]
CVE-2026-89590
NONE
EPSS 0.21%
Updated Sep 11, 2026
Linux
https://git.kernel.org/stable/c/7d6fa298c23495b805004f5f446497b661998fa5
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/9ad8821573a36bcd18c84dbca3027802b0ea062f
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/9b2dedadf6a91ac3fc9fae268bb556a041222711
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVE Details
CVE ID
CVE-2026-89590
Published Date
Sep 11, 2026
Vendor
Linux
Severity
NONE
Exploit Prediction (EPSS)
Probability of Exploit
0.21%
Likelihood of exploitation in next 30 days
Percentile:
9.8th percentile (higher than 9.8% of all CVEs)
Standard patching cycle
Impact
Minimal impact
Source
View Advisory