Linux Kernel up to 7.1.9 CRAT parser drm/amdkfd kfd_parse_subtype out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.93

Summaryinfo

A vulnerability was found in Linux Kernel up to 7.1.9 and classified as problematic. This vulnerability affects the function kfd_parse_subtype of the file drm/amdkfd of the component CRAT parser. The manipulation results in out-of-bounds. This vulnerability is identified as CVE-2026-80747. The attack is only possible with local access. There is not any exploit available.

Detailsinfo

A vulnerability was found in Linux Kernel up to 7.1.9. It has been classified as problematic. Affected is the function kfd_parse_subtype of the file drm/amdkfd of the component CRAT parser. The manipulation with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

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)

The advisory is available at git.kernel.org. This vulnerability is traded as CVE-2026-80747 since 08/26/2026. The exploitability is told to be easy. Local access is required to approach this attack. Technical details are known, but there is no available exploit.

Upgrading to version 7.1.10 eliminates this vulnerability. Applying the patch ca91e0cc8087568e4b791648a7c01e804f48cb73/6e7566ba4739dd573c331adde1c96690f7a567bd is able to eliminate this problem.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 7.1.10
Patch: ca91e0cc8087568e4b791648a7c01e804f48cb73/6e7566ba4739dd573c331adde1c96690f7a567bd

Timelineinfo

08/26/2026 CVE reserved
09/03/2026 +8 days Advisory disclosed
09/03/2026 +0 days VulDB entry created
09/03/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-80747 (🔒)
GCVE (CVE): GCVE-0-2026-80747
GCVE (VulDB): GCVE-100-398346

Entryinfo

Created: 09/03/2026 10:57
Changes: 09/03/2026 10:57 (60)
Complete: 🔍
Cache ID: 216::103

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