CVE-2025-40228

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> mm/damon/sysfs: catch commit test ctx alloc failure<br /> <br /> Patch series "mm/damon/sysfs: fix commit test damon_ctx [de]allocation".<br /> <br /> DAMON sysfs interface dynamically allocates and uses a damon_ctx object<br /> for testing if given inputs for online DAMON parameters update is valid.<br /> The object is being used without an allocation failure check, and leaked<br /> when the test succeeds. Fix the two bugs.<br /> <br /> <br /> This patch (of 2):<br /> <br /> The damon_ctx for testing online DAMON parameters commit inputs is used<br /> without its allocation failure check. This could result in an invalid<br /> memory access. Fix it by directly returning an error when the allocation<br /> failed.