CVE-2025-40191 - drm/amdkfd: Fix kfd process ref leaking when userptr unmapping

CVE ID : CVE-2025-40191 Published : Nov. 12, 2025, 10:15 p.m. | 1 hour, 2 minutes ago Description : In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Fix kfd process ref leaking when userptr unmapping kfd_lookup_process_by_pid hold the kfd process reference to ensure it doesn't get destroyed while sending the segfault event to user space. Calling kfd_lookup_process_by_pid as function parameter leaks the kfd process refcount and miss the NULL pointer check if app process is already destroyed. Severity: 0.0 | NA Visit the link for more details, such as CVSS details, affected products, timeline, and more...