Vulnerability CVE-2024-40924
Published: 2024-07-12

Description:
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)

 References:
https://git.kernel.org/stable/c/327280149066f0e5f2e50356b5823f76dabfe86e
https://git.kernel.org/stable/c/7a9883be3b98673333eec65c4a21cc18e60292eb
https://git.kernel.org/stable/c/a2552020fb714ff357182c3c179abfac2289f84d
https://git.kernel.org/stable/c/43e2b37e2ab660c3565d4cff27922bc70e79c3f1
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