Vulnerability 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.
References
- https://git.kernel.org/stable/c/0710cc97962ca3bcabaa15ce7fead300faf726cd
- https://git.kernel.org/stable/c/a8c0592a80e954825f2ba29e7f32893f1df762f2
- https://git.kernel.org/stable/c/d58fdbe37a829fd2e5803dd4e5a72992dd8c5368
- https://git.kernel.org/stable/c/e03442b0c48bdb034f5b7cf9f3b76d8025576071
- https://git.kernel.org/stable/c/ee59df7a886a35113f309e3eb791060c46f79bb1
- https://git.kernel.org/stable/c/f18c561eb9c51f1ba3adb6117926a98a66599848
FAQ
What is CVE-2026-72177?
CVE-2026-72177 is a documented vulnerability. 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 directorie...
How severe is CVE-2026-72177?
CVSS scoring is not yet available for CVE-2026-72177. Check NVD for updates.
Is there a patch for CVE-2026-72177?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.