| Assigner | Linux |
| Reserved | 2024-05-30 |
| Published | 2024-05-30 |
| Updated | 2024-06-06 |
Description
In the Linux kernel, the following vulnerability has been resolved: mm/slab: make __free(kfree) accept error pointers Currently, if an automatically freed allocation is an error pointer that will lead to a crash. An example of this is in wm831x_gpio_dbg_show(). 171 char *label __free(kfree) = gpiochip_dup_line_label(chip, i); 172 if (IS_ERR(label)) { 173 dev_err(wm831x->dev, "Failed to duplicate label\n"); 174 continue; 175 } The auto clean up function should check for error pointers as well, otherwise we're going to keep hitting issues like this.
Product status
3c6cc62ce126 before 9f6eb0ab4f95
54da6a092431 before ac6cf3ce9b7d
54da6a092431 before 79cbe0be6c03
54da6a092431 before cd7eb8f83fcf
6.5
Any version before 6.5
6.1.91
6.6.31
6.8.10
6.9
References
https://git.kernel.org/stable/c/9f6eb0ab4f95240589ee85fd9886a944cd3645b2
https://git.kernel.org/stable/c/ac6cf3ce9b7d12acb7b528248df5f87caa25fcdc
https://git.kernel.org/stable/c/79cbe0be6c0317b215ddd8bd3e32f0afdac48543
https://git.kernel.org/stable/c/cd7eb8f83fcf258f71e293f7fc52a70be8ed0128
