CVE-2026-68262
HighCVSS 7.1Exploitation Probability (EPSS)
Low risk3th percentile - higher than 3% of all known CVEs
Summary
In the Linux kernel, the drm/imagination driver has a vulnerability in pvr_set_uobj_array() where the strides for user and kernel pointers are swapped during array copying. This leads to reads/writes at wrong addresses and incorrect padding clearing.
Risk Assessment
The risk includes potential memory corruption, information leak, or system crash due to incorrect data copying.
Recommendation
It is recommended to update the Linux kernel to a version containing the fix that correctly handles stride and clears padding for each element.
Original NVD description (English source)
In the Linux kernel, the following vulnerability has been resolved: drm/imagination: Fix user array stride in pvr_set_uobj_array() pvr_set_uobj_array() copies an array of kernel objects to a userspace array whose element size is described by out->stride. When out->stride is different from the kernel object size, the slow path advances the userspace pointer by the kernel object size and the kernel pointer by the userspace stride. This reverses the intended layout. For larger userspace strides, later copies read from the wrong kernel addresses. For smaller userspace strides, later copies are written at the wrong userspace offsets. The padding clear is also done only for the first element instead of the padding area for each element. Advance the userspace pointer by out->stride and the kernel pointer by obj_size, and clear per-element padding while the current userspace pointer is still available.