Podatność CVE-2024-42259


Publikacja: 2024-08-14

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

drm/i915/gem: Fix Virtual Memory mapping boundaries calculation

Calculating the size of the mapped area as the lesser value
between the requested size and the actual size does not consider
the partial mapping offset. This can cause page fault access.

Fix the calculation of the starting and ending addresses, the
total size is now deduced from the difference between the end and
start addresses.

Additionally, the calculations have been rewritten in a clearer
and more understandable form.

[Joonas: Add Requires: tag]
Requires: 60a2066c5005 ("drm/i915/gem: Adjust vma offset for framebuffer mmap offset")
(cherry picked from commit 97b6784753da06d9d40232328efc5c5367e53417)

W naszej bazie, znaleźliśmy następujące noty dla tego CVE:
Tytuł
Autor
Data
Med.
Linux i915 PTE Use-After-Free
Jann Horn
24.09.2024

 Referencje:
https://git.kernel.org/stable/c/4b09513ce93b3dcb590baaaff2ce96f2d098312d
https://git.kernel.org/stable/c/ead9289a51ea82eb5b27029fcf4c34b2dd60cf06
https://git.kernel.org/stable/c/8bdd9ef7e9b1b2a73e394712b72b22055e0e26c3

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