In the Linux kernel, the following vulnerability has been resolved: hwmon: (ibmpex) fix use-after-free in high/low store The ibmpexhighlowstore() function retrieves driver data using devgetdrvdata() and uses it without validation. This creates a race condition where the sysfs callback can be invoked after the data structure is freed, leading to use-after-free. Fix by adding a NULL check after devget_drvdata(), and reordering operations in the deletion path to prevent TOCTOU.