In the Linux kernel, the following vulnerability has been resolved:
hwmon: (asus-ec-sensors) check sensor index in read_string()
Prevent a potential invalid memory access when the requested sensor is not found.
find_ec_sensor_index() may return a negative value (e.g. -ENOENT), but its result was used without checking, which could lead to undefined behavior when passed to get_sensor_info().
Add a proper check to return -EINVAL if sensor_index is negative.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
[groeck: Return error code returned from find_ec_sensor_index]
| Software | From | Fixed in |
|---|---|---|
| linux / linux_kernel | 5.18 | 6.1.142 |
| linux / linux_kernel | 6.2 | 6.6.94 |
| linux / linux_kernel | 6.7 | 6.12.34 |
| linux / linux_kernel | 6.13 | 6.15.3 |
| debian / debian_linux | 11.0 | 11.0.x |