CVE-2026-43400
Medium
Description
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: add upper bound check on user inputs in signal ioctl Huge input values in amdgpu_userq_signal_ioctl can lead to a OOM and could be exploited. So check these input value against AMDGPU_USERQ_MAX_HANDLES which is big enough value for genuine use cases and could potentially avoid OOM. (cherry picked from commit be267e15f99bc97cbe202cd556717797cdcf79a5)
SeverityMedium
CVSS5.5
Exploit probability—
Product
Linux Kernel
PublishedMay 8, 2026
First seenMay 8, 2026
How to fix
Update
- linux linux_kernel6.18.19, 6.19.9 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 6.16 ≤ v < 6.18.19, 6.19 ≤ v < 6.19.9, 7.0 | 6.18.19, 6.19.9 |
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