CVE-2026-80747
drm/amdkfd: Add bounds check for CRAT subtype length
Description
In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Add bounds check for CRAT subtype length The CRAT parser validates that the subtype header fits within the image, but does not verify that the advertised subtype length fits. A malformed CRAT table with an oversized length field causes out-of-bounds reads when kfd_parse_subtype() casts the header to specific subtype structures. Add validation that sub_type_hdr + length does not exceed the image boundary before parsing the subtype contents. (cherry picked from commit 48e1d1e6e8798aef0312e68d8e586021b5b3cf4d)
INFO
Published Date :
Sept. 3, 2026, 8:26 a.m.
Last Modified :
Sept. 3, 2026, 8:26 a.m.
Remotely Exploit :
No
Source :
Linux
Solution
- Update the Linux kernel to the patched version.
- Verify subtype header and length fit within image boundaries.
- Ensure kfd_parse_subtype() uses validated lengths.
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