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Linux Kernel CVE-2026-80747

| EUVDEUVD-2026-70351 HIGH
2026-09-03 Linux GHSA-9jrx-pr9x-qp88
Buffer Overflow Linux Suse
8.0
CVSS 3.1 · Vendor: Linux
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Severity by source

Vendor (Linux) PRIMARY
8.0 HIGH
AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H
vuln.today AI
7.1 HIGH

Local vector confirmed; PR:L reflects /dev/kfd group access typical for AMD KFD; OOB read has no write impact (I:N).

3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
4.0 AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N
SUSE
5.1 MEDIUM
AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:H

Primary rating from Vendor (Linux).

CVSS VectorVendor: Linux

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
Low
Availability
High

Lifecycle Timeline

5
Analysis Generated
Sep 04, 2026 - 05:30 vuln.today
CVSS changed
Sep 04, 2026 - 05:22 NVD
8.0 (HIGH)
Patch available
Sep 03, 2026 - 10:16 EUVD
CVE Published
Sep 03, 2026 - 08:26 cve.org
UNKNOWN (no severity yet)
CVE Published
Sep 03, 2026 - 08:26 cve.org
HIGH 8.0

DescriptionCVE.org

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)

AnalysisAI

Out-of-bounds memory reads in the Linux kernel's drm/amdkfd CRAT table parser allow a local attacker to leak kernel memory and potentially crash the system on AMD GPU/APU-equipped hosts. The CRAT (Component Resource Affinity Table) subtype parser validates that a subtype header fits within the image buffer but fails to verify that the advertised subtype length field also stays within bounds, enabling kfd_parse_subtype() to cast the header pointer beyond valid memory when a malformed CRAT table is supplied. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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Vulnerability AssessmentAI

Exploitation Exploitation requires a host system with AMD KFD-capable GPU or APU hardware with the amdkfd kernel module loaded and active. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The vendor-supplied CVSS vector (AV:L/AC:L/PR:N/UI:N/C:H/I:L/A:H) yields 8.0, but several metrics warrant scrutiny. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Apply the vendor-released patches: upgrade to Linux 7.1.10 or Linux 7.2 (or later), which contain the bounds-check fix for kfd_parse_subtype(). … Detailed patch versions, workarounds, and compensating controls in full report.
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Recommended ActionAI

Within 24 hours, inventory all Linux systems with AMD GPUs or APUs in your environment, particularly in data centers, HPC clusters, and multi-tenant platforms, and assess their criticality and user access controls. …

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Vendor StatusVendor

SUSE

Severity: Moderate
Product Status
SUSE Linux Enterprise Desktop 15 SP7 Affected
SUSE Linux Enterprise Desktop 15 SP7 Affected
SUSE Linux Enterprise High Availability Extension 15 SP7 Affected
SUSE Linux Enterprise High Availability Extension 15 SP7 Affected
SUSE Linux Enterprise High Availability Extension 16.0 Affected

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CVE-2026-80747 vulnerability details – vuln.today
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