In the Linux kernel, the following vulnerability has been resolved: mm/damon/tests/sysfs-kunit.h: fix memory leak in damonsysfstestaddtargets() The sysfstarget->regions allocated in damonsysfsregionsalloc() is not freed in damonsysfstestaddtargets(), which cause the following memory leak, free it to fix it. unreferenced object 0xffffff80c2a8db80 (size 96): comm "kunittrycatch", pid 187, jiffies 4294894363 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc 0): [<0000000001e3714d>] kmemleakalloc+0x34/0x40 [<000000008e6835c1>] _kmalloccachenoprof+0x26c/0x2f4 [<000000001286d9f8>] damonsysfstestaddtargets+0x1cc/0x738 [<0000000032ef8f77>] kunittryruncase+0x13c/0x3ac [<00000000f3edea23>] kunitgenericrunthreadfnadapter+0x80/0xec [<00000000adf936cf>] kthread+0x2e8/0x374 [<0000000041bb1628>] retfrom_fork+0x10/0x20