Medium · published October 1, 2025
In the Linux kernel, the following vulnerability has been resolved:
pcmcia: Add error handling for add_interval() in do_validate_mem()
In the do_validate_mem(), the call to add_interval() does not
handle errors. If kmalloc() fails in add_interval(), it could
result in a null pointer being inserted into the linked list,
leading to illegal memory access when sub_interval() is called
next.
This patch adds an error handling for the add_interval(). If
add_interval() returns an error, the function will return early
with the error code.
| Product | Versions | Fixed in |
|---|---|---|
| linux/linux_kernel | ≥ 2.6.34, < 5.4.299 | 5.4.299 |
| linux/linux_kernel | ≥ 5.5, < 5.10.243 | 5.10.243 |
| linux/linux_kernel | ≥ 5.11, < 5.15.192 | 5.15.192 |
| linux/linux_kernel | ≥ 5.16, < 6.1.151 | 6.1.151 |
| linux/linux_kernel | ≥ 6.2, < 6.6.105 | 6.6.105 |
| linux/linux_kernel | ≥ 6.7, < 6.12.46 | 6.12.46 |
| linux/linux_kernel | ≥ 6.13, < 6.16.6 | 6.16.6 |
| linux/linux_kernel | all versions | — |
| linux/linux_kernel | all versions | — |
| linux/linux_kernel | all versions | — |
| linux/linux_kernel | all versions | — |
| debian/debian_linux | all versions | — |