Vulnerability CVE-2024-41011
Published: 2024-07-18

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

drm/amdkfd: don't allow mapping the MMIO HDP page with large pages

We don't get the right offset in that case. The GPU has
an unused 4K area of the register BAR space into which you can
remap registers. We remap the HDP flush registers into this
space to allow userspace (CPU or GPU) to flush the HDP when it
updates VRAM. However, on systems with >4K pages, we end up
exposing PAGE_SIZE of MMIO space.

 References:
https://git.kernel.org/stable/c/89fffbdf535ce659c1a26b51ad62070566e33b28
https://git.kernel.org/stable/c/4b4cff994a27ebf7bd3fb9a798a1cdfa8d01b724
https://git.kernel.org/stable/c/6186c93560889265bfe0914609c274eff40bbeb5
https://git.kernel.org/stable/c/be4a2a81b6b90d1a47eaeaace4cc8e2cb57b96c7
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