Allocation of Resources Without Limits or Throttling Affecting kernel-source package, versions <6.4.0-150700.53.55.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.12% (3rd percentile)

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  • Snyk IDSNYK-SLES157-KERNELSOURCE-17149451
  • published4 Jun 2026
  • disclosed3 Jun 2026

Introduced: 3 Jun 2026

NewCVE-2026-23468  (opens in a new tab)
CWE-770  (opens in a new tab)

How to fix?

Upgrade SLES:15.7 kernel-source to version 6.4.0-150700.53.55.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-source package and not the kernel-source package as distributed by SLES. See How to fix? for SLES:15.7 relevant fixed versions and status.

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

drm/amdgpu: Limit BO list entry count to prevent resource exhaustion

Userspace can pass an arbitrary number of BO list entries via the bo_number field. Although the previous multiplication overflow check prevents out-of-bounds allocation, a large number of entries could still cause excessive memory allocation (up to potentially gigabytes) and unnecessarily long list processing times.

Introduce a hard limit of 128k entries per BO list, which is more than sufficient for any realistic use case (e.g., a single list containing all buffers in a large scene). This prevents memory exhaustion attacks and ensures predictable performance.

Return -EINVAL if the requested entry count exceeds the limit

(cherry picked from commit 688b87d39e0aa8135105b40dc167d74b5ada5332)

CVSS Base Scores

version 3.1