Description (CNA)
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].
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 04a06b139ec08aa63d7377f6d3e5218f8ddb1c5d before b9dadf026a9fb681ed32a0646adc10ab485bf3b1; affected 04a06b139ec08aa63d7377f6d3e5218f8ddb1c5d before 0655f5cf1735508394ef8af98ddcfab3ac1c1cc5; affected 04a06b139ec08aa63d7377f6d3e5218f8ddb1c5d before 0199390a6b92fc21860e1b858abf525c7e73b956 |
| Linux / Linux | affected 6.17; unaffected 0 before 6.17; unaffected 6.18.23 through 6.18.*; unaffected 6.19.13 through 6.19.*; unaffected 7.0 through * |
CWE
No CWE identifiers supplied.