drm/amdkfd: Add bounds check for CRAT subtype length
CVE-2026-80747 · published 3 Sept 2026
How serious is it
- Severity: high, CVSS score 8 out of 10.
- No exploit prediction (EPSS) score yet.
- Not on the CISA list of exploited vulnerabilities.
- No public exploit in Exploit-DB.
Is your app affected by CVE-2026-80747?
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Who is affected
- Linux Linux: 5b5c4e40a37e858e2bff8cd91be8e972256392c4 to < fef8c8afcb85dce5ff115f82a148cdf87a9617b9, 5b5c4e40a37e858e2bff8cd91be8e972256392c4 to < 77b659fb104eb069ea7a61960699e4d1eea6567a, 5b5c4e40a37e858e2bff8cd91be8e972256392c4 to < 69164d6bdad5d6657e51436a3f602822f620a46a, 5b5c4e40a37e858e2bff8cd91be8e972256392c4 to < ca91e0cc8087568e4b791648a7c01e804f48cb73
- Linux Linux: 3.19
How to check
- Find out whether you run the affected product and which version, then compare it with the versions above.
How to fix
Copies a prompt for Claude Code, Cursor or Codex that asks it to check whether you run this product.
- Apply the vendor's update or mitigation from the references below. If there is none yet, limit exposure of the affected service until there is.
- If a vulnerable version was live, check your logs and rotate the secrets that server could read.
The advisory
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)
Check your whole app
Dependencies are only half of it. Free and read-only: before you push, run npx shippable-dev scan localhost:3000 in your project folder, no account needed. For your live app, you prove it's yours with a one-line tag first.
References
- git.kernel.org/stable/c/fef8c8afcb85dce5ff115f82a148cdf87a9617b9
- git.kernel.org/stable/c/77b659fb104eb069ea7a61960699e4d1eea6567a
- git.kernel.org/stable/c/69164d6bdad5d6657e51436a3f602822f620a46a
- git.kernel.org/stable/c/ca91e0cc8087568e4b791648a7c01e804f48cb73
- git.kernel.org/stable/c/6e7566ba4739dd573c331adde1c96690f7a567bd
Merged from CVE List. Last updated 26 Oct 2026. All vulnerabilities · RSS · JSON