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DEBIAN-CVE-2026-23468

DEBIAN-CVE-2026-23468 PUBLISHED CVSS 9.300000190734863 CRITICAL

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)

Risk Scores

CVSS v4.0
9.300000190734863
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Affected Products

VendorProductVersions
Debian:12linux6.12.33-1, *, 6.1.158-1
Debian:11linux5.16.11-1, 6.1.1-1, 6.1.1-1
Debian:13linux6.12.38-1, 6.12.43-1, 6.12.43-1~bpo12+1
Debian:14linux6.18~rc6-1~exp1, 6.18~rc5-1~exp1, 6.18~rc4-1~exp2

Timeline

  • Apr 3, 2026 CVE Published
  • May 8, 2026 CVE Updated
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