CVE-2026-23468

MEDIUM EPSS 2.4%
Published Apr 3, 20262mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Apr 3, 2026 2mo ago
Last Modified Jun 17, 2026 1w ago

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)

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
2.4% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-770

Affected Products 8

VendorProductVersionRange
linuxlinux_kernel*≥4.2  –  <6.6.140
linuxlinux_kernel*≥6.7  –  <6.12.86
linuxlinux_kernel*≥6.13  –  <6.18.20
linuxlinux_kernel*≥6.19  –  <6.19.10
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any

References 6

  • git.kernel.org https://git.kernel.org/stable/c/2723e6851309531ce61aed74e93a0cd268cc862a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5ce4a38e6c2488949e373d5066303f9c128db614
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6270b1a5dab94665d7adce3dc78bc9066ed28bdd
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c833d6c7199c5b5fca9ec95593acd539ec9c171c
  • git.kernel.org https://git.kernel.org/stable/c/e620378aab78d415bd8a15a2f91c145906520288
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f462624a6e4b5f1ec2664c2c53e408b2f4fb53e9
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/2723e6851309531ce61aed74e93a0cd268cc862a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5ce4a38e6c2488949e373d5066303f9c128db614
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6270b1a5dab94665d7adce3dc78bc9066ed28bdd
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e620378aab78d415bd8a15a2f91c145906520288
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f462624a6e4b5f1ec2664c2c53e408b2f4fb53e9
    Patch