CVE-2026-93077
cxl/features: Clamp Get Feature output size to the remaining buffer
- State
- Published
- Severity
- Not scored
- Published
- Sep 17, 2026
- Updated
- Oct 19, 2026
- Reserved
- Sep 17, 2026
Description
In the Linux kernel, the following vulnerability has been resolved:
cxl/features: Clamp Get Feature output size to the remaining buffer
cxl_get_feature() reads a feature in a loop but passes a fixed size_out as the output capacity every iteration. On the last partial iteration the buffer has less room left, so a device that returns more than asked can overflow feat_out.
Use the per-iter size data_to_rd_size, which already tracks the remaining room, as the output capacity.
Scores
The record has no CVSS score.
Weaknesses
The record names no weakness.
Affected Products
| Product | Versions |
|---|---|
LinuxLinux |
|
LinuxLinux |
|
References
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