Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs: dealloc repeat_call_control if damon_call() fails damon_call() for repeat_call_control of DAMON_SYSFS could fail if somehow the kdamond is stopped before the damon_call(). It could happen, for example, when te damon context was made for monitroing of a virtual address processes, and the process is terminated immediately, before the damon_call() invocation. In the case, the dyanmically allocated repeat_call_control is not deallocated and leaked. Fix the leak by deallocating the repeat_call_control under the damon_call() failure. This issue is discovered by sashiko [1].
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 6.17.1, < 6.18.23 |
References
- https://git.kernel.org/stable/c/0199390a6b92fc21860e1b858abf525c7e73b956Patch
- https://git.kernel.org/stable/c/0655f5cf1735508394ef8af98ddcfab3ac1c1cc5Patch
- https://git.kernel.org/stable/c/b9dadf026a9fb681ed32a0646adc10ab485bf3b1Patch
FAQ
What is CVE-2026-31653?
CVE-2026-31653 is a vulnerability with a CVSS score of 5.5 (MEDIUM). In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs: dealloc repeat_call_control if damon_call() fails damon_call() for repeat_call_control of DAMON_SYSFS could fail i...
How severe is CVE-2026-31653?
CVE-2026-31653 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-31653?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.