CVE-2026-53144
MediumCVSS 5.5Exploitation Probability (EPSS)
Low risk6th percentile — higher than 6% of all known CVEs
Summary
In the Linux kernel, a NULL pointer dereference vulnerability was found in the DRM AMD KFD driver. The get_queue_ids() function returns NULL when usr_queue_id_array is NULL and num_queues is non-zero, causing a kernel panic.
Risk Assessment
A user can trigger a kernel panic via a crafted ioctl call with invalid parameters, leading to denial of service (DoS) and potential system instability.
Recommendation
Apply the patch from commit f165a82cdf503884bb1797771c61b2fcc72113d4 or update the Linux kernel to a version containing this fix immediately.
Original NVD description (English source)
In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: fix NULL dereference in get_queue_ids() When usr_queue_id_array is NULL and num_queues is non-zero, get_queue_ids() returns NULL. The callers check only IS_ERR() on the return value; since IS_ERR(NULL) == false the check passes, and suspend_queues() calls q_array_invalidate() which immediately dereferences NULL while iterating num_queues times. Userspace can trigger this via kfd_ioctl_set_debug_trap() by supplying num_queues > 0 with a zero queue_array_ptr, causing a kernel panic. A NULL usr_queue_id_array with num_queues == 0 is a legitimate no-op (q_array_invalidate never executes, and resume_queues already guards all queue_ids dereferences behind a NULL check). Return ERR_PTR(-EINVAL) only when num_queues is non-zero and the pointer is absent; both callers already propagate IS_ERR() returns correctly to userspace. (cherry picked from commit f165a82cdf503884bb1797771c61b2fcc72113d4)