CVE-2026-23468
5.5 MEDIUMIn the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Limit BO list entry count to prevent resource exhaustion...
Published: 2026-04-03 · Last updated: 2026-06-01
Severity and scoring
- CVSS
- 5.5 MEDIUM
- Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CWE
- CWE-770
Affected products
| Vendor | Product |
|---|---|
| linux | linux_kernel |
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)
Source: NVD
References
- [NVD]https://nvd.nist.gov/vuln/detail/CVE-2026-23468
- [Patch]https://git.kernel.org/stable/c/2723e6851309531ce61aed74e93a0cd268cc862a
- [Patch]https://git.kernel.org/stable/c/5ce4a38e6c2488949e373d5066303f9c128db614
- [Patch]https://git.kernel.org/stable/c/6270b1a5dab94665d7adce3dc78bc9066ed28bdd
- [Other]https://git.kernel.org/stable/c/c833d6c7199c5b5fca9ec95593acd539ec9c171c
- [Patch]https://git.kernel.org/stable/c/e620378aab78d415bd8a15a2f91c145906520288
- [Patch]https://git.kernel.org/stable/c/f462624a6e4b5f1ec2664c2c53e408b2f4fb53e9
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