Description
In the Linux kernel, the following vulnerability has been resolved:

drm/amdgpu: cap ATOM command table nesting depth

Cap nesting at 32 levels with execute_depth and
return -ELOOP when exceeded.
Published: 2026-10-23
Score: 5.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Denial of Service
Action: Patch
AI Analysis

Impact

The vulnerability arises in the Linux kernel's AMDGPU driver where capability (cap) nesting can exceed a limit of 32 levels. When a nesting level beyond this threshold is attempted, the driver returns -ELOOP, signalling an excessive recursion situation. This flaw can cause an application or user session that generates nested ATOM command tables to fail, potentially leading to a denial of service if the error is not handled gracefully. The weakness is a classic case where unbounded recursion or resource exhaustion is introduced by a system component that does not enforce a practical limit on nested operations.

Affected Systems

The flaw is present in the Linux kernel across all Linux distributions that include the AMDGPU driver and have not applied the patch. Specific kernel versions are not enumerated in the available data, so any deployment using a vulnerable kernel revision is potentially affected.

Risk and Exploitability

The CVSS score of 5.5 is published, while the EPSS score is < 1% and the flaw is not listed in the CISA KEV catalog, indicating a moderate risk rating. The attack vector is likely local or requires elevated privileges to interact directly with the graphics driver; however, the fault simply manifests when the nesting depth is exceeded. Without a public exploit, the likelihood of exploitation is undetermined, but the denial of service potential remains a concern in environments that generate deep ATOM command tables.

Generated by OpenCVE AI on October 29, 2026 at 22:51 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Update the Linux kernel to a version that limits ATOM command table nesting to 32 levels and returns -ELOOP when exceeded.
  • Configure monitoring to alert on repeated -ELOOP errors in dmesg or system logs, indicating an attempted overflow.
  • Where possible, apply application-level safeguards to prevent generation of deeply nested ATOM command tables before execution.

Generated by OpenCVE AI on October 29, 2026 at 22:51 UTC.

Tracking

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Advisories

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History

Thu, 29 Oct 2026 20:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-400
CWE-674

Thu, 29 Oct 2026 12:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-835
References
Metrics threat_severity

None

cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Moderate


Fri, 23 Oct 2026 16:30:00 +0000

Type Values Removed Values Added
First Time appeared Linux linux
Vendors & Products Linux linux

Fri, 23 Oct 2026 15:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-400
CWE-674

Fri, 23 Oct 2026 12:00:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: cap ATOM command table nesting depth Cap nesting at 32 levels with execute_depth and return -ELOOP when exceeded.
Title drm/amdgpu: cap ATOM command table nesting depth
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Subscriptions

Linux Linux Linux Kernel
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-10-26T06:56:45.185Z

Reserved: 2026-09-25T10:25:14.380Z

Link: CVE-2026-98914

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-23T12:18:25.587

Modified: 2026-10-26T07:17:17.277

Link: CVE-2026-98914

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-10-23T00:00:00Z

Links: CVE-2026-98914 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-10-29T23:00:06Z

Weaknesses
  • CWE-835

    Loop with Unreachable Exit Condition ('Infinite Loop')