High · published July 12, 2024
In the Linux kernel, the following vulnerability has been resolved:
drm/i915/dpt: Make DPT object unshrinkable
In some scenarios, the DPT object gets shrunk but
the actual framebuffer did not and thus its still
there on the DPT's vm->bound_list. Then it tries to
rewrite the PTEs via a stale CPU mapping. This causes panic.
[vsyrjala: Add TODO comment]
(cherry picked from commit 51064d471c53dcc8eddd2333c3f1c1d9131ba36c)
| Product | Versions | Fixed in |
|---|---|---|
| linux/linux_kernel | ≥ 6.0, < 6.1.95 | 6.1.95 |
| linux/linux_kernel | ≥ 6.2, < 6.6.35 | 6.6.35 |
| linux/linux_kernel | ≥ 6.7, < 6.9.6 | 6.9.6 |
| linux/linux_kernel | all versions | — |