High · published March 25, 2024
In the Linux kernel, the following vulnerability has been resolved:
net: dsa: fix a crash if ->get_sset_count() fails
If ds->ops->get_sset_count() fails then it "count" is a negative error
code such as -EOPNOTSUPP. Because "i" is an unsigned int, the negative
error code is type promoted to a very high value and the loop will
corrupt memory until the system crashes.
Fix this by checking for error codes and changing the type of "i" to
just int.
| Product | Versions | Fixed in |
|---|---|---|
| linux/linux_kernel | ≥ 4.7, < 4.19.193 | 4.19.193 |
| linux/linux_kernel | ≥ 4.20, < 5.4.124 | 5.4.124 |
| linux/linux_kernel | ≥ 5.5, < 5.10.42 | 5.10.42 |
| linux/linux_kernel | ≥ 5.11, < 5.12.9 | 5.12.9 |
| linux/linux_kernel | all versions | — |
| linux/linux_kernel | all versions | — |
| linux/linux_kernel | all versions | — |