CVE-2025-21880

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The issue is related to the handling of EFAULT errors in the Linux kernel, specifically in the drm/xe/userptr module. Currently, EFAULT errors from hmm range fault() are treated as non-fatal when called from xe vm userptr pin(), with the assumption that the user has unmapped the memory or has no intention of accessing it from the GPU. However, it is possible for the userptr vma to still be on the rebind list in preempt rebind work func() if the pin fails and needs to be retried, leading to a fatal error. This explains an internal user report of hitting a warning message.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.