CyberRota Analysis
AI-GeneratedThe vulnerability affects the Linux kernel's DAMON subsystem, specifically in the error handling paths of the `damon_sysfs_access_pattern_add_dirs()` and `damon_sysfs_scheme_add_dirs()` functions, where directory references are improperly ordered. This mismanagement can lead to uninitialized memory dereferences or memory leaks, potentially compromising system stability and security. Linux system administrators and developers working with the kernel should prioritize applying the patch to mitigate these risks.
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs-schemes: fix dir put orders in access_pattern_add_dirs() Patch series "mm/damon/sysfs-schemes: fix wrong directories put orders in error paths". Error paths of damon_sysfs_access_pattern_add_dirs() and damon_sysfs_scheme_add_dirs() functions put references to directories in wrong orders. As a result, uninitialized memory dereference and/or memory leak can happen. Fix those. This patch (of 2): In access_pattern_add_dirs(), error handling path puts references starting from setup failed directories. If the failure happpened from the initial allication in the setup functions, uninitialized memory dereference happen. The allocation failures will not commonly happen, but the consequence is quite bad. Fix the wrong reference put orders. The issue was discovered [1] by Sashiko.