What’s Vulnerable › Vulnerabilities

CVE-2026-80747: drm/amdkfd: Add bounds check for CRAT subtype length

• Severity: high (CVSS 8.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-03 · updated 2026-10-30

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)

Affected products

• Linux: 3.19 — fixed in 7.2

How to fix

Upgrade to a fixed version: Linux 7.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/1f9cc5375916b57acb1ad4443af7b4dbf347638a
• https://git.kernel.org/stable/c/69164d6bdad5d6657e51436a3f602822f620a46a
• https://git.kernel.org/stable/c/6e7566ba4739dd573c331adde1c96690f7a567bd
• https://git.kernel.org/stable/c/77b659fb104eb069ea7a61960699e4d1eea6567a
• https://git.kernel.org/stable/c/ca91e0cc8087568e4b791648a7c01e804f48cb73
• https://git.kernel.org/stable/c/fef8c8afcb85dce5ff115f82a148cdf87a9617b9

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