CVEvulnerability
CVE-2026-68262
7.1 HIGH
Official page ↗
- Status
- Received
- Published
- 2026-08-10
- Last modified
- 2026-08-17
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 7.1 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Description
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.
References
- https://git.kernel.org/stable/c/09beaf4aec05b0525f2153dce693f3eb3166697a git.kernel.org
- https://git.kernel.org/stable/c/8dc8f3f4c2382fb7d1b1986ba8f33a2466cd3d7a git.kernel.org
- https://git.kernel.org/stable/c/b983a35dad3701399c692d7c6eb57d8b6ffc0929 git.kernel.org
- https://git.kernel.org/stable/c/bbebc39a70f6fc9b02637c8624349e30325873cb git.kernel.org