Re: [PATCH v8] x86/sgx: Maintain encl->refcount for each encl->mm_list entry

[Dave Hansen]

> This has been shown in tests:
> 
> [  +0.000008] WARNING: CPU: 3 PID: 7620 at kernel/rcu/srcutree.c:374 cleanup_srcu_struct+0xed/0x100
> 
> This is essentially a use-after free, although SRCU notices it as
> an SRCU cleanup in an invalid context.
...

Acked-by: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx