Critical · published December 24, 2024
In the Linux kernel, the following vulnerability has been resolved:
NFSD: Prevent a potential integer overflow
If the tag length is >= U32_MAX - 3 then the "length + 4" addition
can result in an integer overflow. Address this by splitting the
decoding into several steps so that decode_cb_compound4res() does
not have to perform arithmetic on the unsafe length value.
| Product | Versions | Fixed in |
|---|---|---|
| linux/linux_kernel | < 4.19.325 | 4.19.325 |
| linux/linux_kernel | ≥ 4.20, < 5.4.287 | 5.4.287 |
| linux/linux_kernel | ≥ 5.5, < 5.10.231 | 5.10.231 |
| linux/linux_kernel | ≥ 5.11, < 5.15.174 | 5.15.174 |
| linux/linux_kernel | ≥ 5.16, < 6.1.120 | 6.1.120 |
| linux/linux_kernel | ≥ 6.2, < 6.6.64 | 6.6.64 |
| linux/linux_kernel | ≥ 6.7, < 6.11.11 | 6.11.11 |
| linux/linux_kernel | ≥ 6.12, < 6.12.2 | 6.12.2 |