CVE-2026-89591

Summary

In the Linux kernel, the following vulnerability has been resolved:

accel/rocket: initialize job domain before cleanup paths

rocket_ioctl_submit_job() releases rjob through rocket_job_put() on allocation error paths. rocket_job_cleanup() unconditionally calls rocket_iommu_domain_put(job->domain), but job->domain is assigned only after task copying and BO lookups. A failure before that assignment can therefore clean up a job with a NULL domain pointer.

Take the per-file domain reference before the first error path can release rjob. Also clear rjob->tasks after freeing it in rocket_copy_tasks(), so the common cleanup path cannot free the task array again after a task-copy error.

Affected Software

Weaknesses

References

• https://git.kernel.org/stable/c/3043230296653a609ab50006899e64bbb2d99465
• https://git.kernel.org/stable/c/81731f1eda5e6a1dfad31445f741de9bbefbb08e
• https://git.kernel.org/stable/c/70e6a33d68a9b03335c5426332666e52d07f45d6

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