CVE-2026-93077
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.
How to fix
- Linux Linuxb8abbd5c2928fd839dab702244cc57b228ab43aa, ca95b15a0760e7724e61addbdd61050be13b6406, 2aeb21fe557ef154f0cdf4f9745ebd8d5b31ca83 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | 5e5ac21f629de796ab5d598b59c5e468c6fe4f95 ≤ v < b8abbd5c2928fd839dab702244cc57b228ab43aa, 5e5ac21f629de796ab5d598b59c5e468c6fe4f95 ≤ v < ca95b15a0760e7724e61addbdd61050be13b6406, 5e5ac21f629de796ab5d598b59c5e468c6fe4f95 ≤ v < 2aeb21fe557ef154f0cdf4f9745ebd8d5b31ca83, 6.15 | b8abbd5c2928fd839dab702244cc57b228ab43aa, ca95b15a0760e7724e61addbdd61050be13b6406, 2aeb21fe557ef154f0cdf4f9745ebd8d5b31ca83 |
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