In the Linux kernel, the following vulnerability has been resolved:
cifs: fix warning when destroy 'cifsiorequest_pool'
There's a issue as follows: WARNING: CPU: 1 PID: 27826 at mm/slub.c:4698 freelargekmalloc+0xac/0xe0 RIP: 0010:freelargekmalloc+0xac/0xe0 Call Trace: <TASK> ? _warn+0xea/0x330 mempooldestroy+0x13f/0x1d0 initcifs+0xa50/0xff0 [cifs] dooneinitcall+0xdc/0x550 doinitmodule+0x22d/0x6b0 loadmodule+0x4e96/0x5ff0 initmodulefromfile+0xcd/0x130 idempotentinitmodule+0x330/0x620 _x64sysfinitmodule+0xb3/0x110 dosyscall64+0xc1/0x1d0 entrySYSCALL64after_hwframe+0x77/0x7f
Obviously, 'cifsiorequestpool' is not created by mempoolcreate(). So just use mempoolexit() to revert 'cifsiorequestpool'.