CVE-2025-68747

drm/panthor: Fix UAF on kernel BO VA nodes

State: Published
Severity: 7.8 High
Published: Dec 24, 2025
Updated: Aug 5, 2026
Reserved: Dec 24, 2025

Description

In the Linux kernel, the following vulnerability has been resolved:

drm/panthor: Fix UAF on kernel BO VA nodes

If the MMU is down, panthor_vm_unmap_range() might return an error. We expect the page table to be updated still, and if the MMU is blocked, the rest of the GPU should be blocked too, so no risk of accessing physical memory returned to the system (which the current code doesn't cover for anyway).

Proceed with the rest of the cleanup instead of bailing out and leaving the va_node inserted in the drm_mm, which leads to UAF when other adjacent nodes are removed from the drm_mm tree.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	8a1cc07578bf42d85f008316873d710ff684dd29 to before 5a0060ddfc1fcfdb0f7b4fa1b7b3b0c436151391Affected 8a1cc07578bf42d85f008316873d710ff684dd29 to before 1123eadb843588b361c96f53a771202b7953154fAffected 8a1cc07578bf42d85f008316873d710ff684dd29 to before 0612704b6f6ddf2ae223019c52148c5ac76cf70eAffected 8a1cc07578bf42d85f008316873d710ff684dd29 to before 98dd5143447af0ee33551776d8b2560c35d0bc4aAffected
LinuxLinux	6.10Affected before 6.10Not affected 6.12.63 through 6.12.Not affected 6.17.13 through 6.17.Not affected 6.18.2 through 6.18.*Not affected 6.19 and laterNot affected

References

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