CVEvulnerability

CVE-2026-23468

5.5 MEDIUM Published 2026-04-03 Modified 2026-07-24 Official page ↗
Status
Modified
Published
2026-04-03
Last modified
2026-07-24
Assigner
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS 3.1 ([email protected])
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-770

Description

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)

Affected configurations

• linux linux kernel (>= 4.2 < 6.6.140) • linux linux kernel (>= 6.7 < 6.12.86) • linux linux kernel (>= 6.13 < 6.18.20) • linux linux kernel (>= 6.19 < 6.19.10) • linux linux kernel 7.0

Related

Weakness · CWE (1)

  • CWE-770 Allocation of Resources Without Limits or Throttling weakness

References