accel/rocket: Fix error path handling in rocket_job_run()

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-89590
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-11 20:19:43 UTC
Updated2026-09-11 20:19:43 UTC
DescriptionIn 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]

Risk And Classification

EPSS: 0.001660000 probability, percentile 0.061610000 (date 2026-09-14)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 0810d5ad88a18f1e6d549853a388ad0316f74e36 9ad8821573a36bcd18c84dbca3027802b0ea062f git Not specified
CNA Linux Linux affected 0810d5ad88a18f1e6d549853a388ad0316f74e36 7d6fa298c23495b805004f5f446497b661998fa5 git Not specified
CNA Linux Linux affected 0810d5ad88a18f1e6d549853a388ad0316f74e36 9b2dedadf6a91ac3fc9fae268bb556a041222711 git Not specified
CNA Linux Linux affected 6.18 Not specified
CNA Linux Linux unaffected 6.18 semver Not specified
CNA Linux Linux unaffected 6.18.50 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.4 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/9b2dedadf6a91ac3fc9fae268bb556a041222711 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/7d6fa298c23495b805004f5f446497b661998fa5 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/9ad8821573a36bcd18c84dbca3027802b0ea062f 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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