CVE-2026-89590
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]
How to fix
- Linux Linux9ad8821573a36bcd18c84dbca3027802b0ea062f, 7d6fa298c23495b805004f5f446497b661998fa5, 9b2dedadf6a91ac3fc9fae268bb556a041222711 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | 0810d5ad88a18f1e6d549853a388ad0316f74e36 ≤ v < 9ad8821573a36bcd18c84dbca3027802b0ea062f, 0810d5ad88a18f1e6d549853a388ad0316f74e36 ≤ v < 7d6fa298c23495b805004f5f446497b661998fa5, 0810d5ad88a18f1e6d549853a388ad0316f74e36 ≤ v < 9b2dedadf6a91ac3fc9fae268bb556a041222711, 6.18 | 9ad8821573a36bcd18c84dbca3027802b0ea062f, 7d6fa298c23495b805004f5f446497b661998fa5, 9b2dedadf6a91ac3fc9fae268bb556a041222711 |
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