GHSA-mgj5-5f6h-8742unknown
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Limit BO list...
🔗 CVE IDs covered (1)
📋 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)
🔗 References (7)
- https://nvd.nist.gov/vuln/detail/CVE-2026-23468
- https://git.kernel.org/stable/c/5ce4a38e6c2488949e373d5066303f9c128db614
- https://git.kernel.org/stable/c/6270b1a5dab94665d7adce3dc78bc9066ed28bdd
- https://git.kernel.org/stable/c/f462624a6e4b5f1ec2664c2c53e408b2f4fb53e9
- https://git.kernel.org/stable/c/2723e6851309531ce61aed74e93a0cd268cc862a
- https://git.kernel.org/stable/c/e620378aab78d415bd8a15a2f91c145906520288
- https://github.com/advisories/GHSA-mgj5-5f6h-8742