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CVE-2026-80747

drm/amdkfd: Add bounds check for CRAT subtype length PUBLISHED

Description (CNA)

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)

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 5b5c4e40a37e858e2bff8cd91be8e972256392c4 before fef8c8afcb85dce5ff115f82a148cdf87a9617b9; affected 5b5c4e40a37e858e2bff8cd91be8e972256392c4 before 77b659fb104eb069ea7a61960699e4d1eea6567a; affected 5b5c4e40a37e858e2bff8cd91be8e972256392c4 before 69164d6bdad5d6657e51436a3f602822f620a46a; affected 5b5c4e40a37e858e2bff8cd91be8e972256392c4 before ca91e0cc8087568e4b791648a7c01e804f48cb73; affected 5b5c4e40a37e858e2bff8cd91be8e972256392c4 before 6e7566ba4739dd573c331adde1c96690f7a567bd
Linux / Linuxaffected 3.19; unaffected 0 before 3.19; unaffected 6.6.160 through 6.6.*; unaffected 6.12.114 through 6.12.*; unaffected 6.18.57 through 6.18.*; unaffected 7.1.10 through 7.1.*; unaffected 7.2 through *

CWE

No CWE identifiers supplied.

References