Commit 4692bc77 authored by Kai Huang's avatar Kai Huang Committed by Borislav Petkov
Browse files

x86/sgx: Add missing xa_destroy() when virtual EPC is destroyed 



xa_destroy() needs to be called to destroy a virtual EPC's page array
before calling kfree() to free the virtual EPC. Currently it is not
called so add the missing xa_destroy().

Fixes: 540745dd ("x86/sgx: Introduce virtual EPC for use by KVM guests")
Signed-off-by: default avatarKai Huang <kai.huang@intel.com>
Signed-off-by: default avatarBorislav Petkov <bp@suse.de>
Acked-by: default avatarDave Hansen <dave.hansen@intel.com>
Tested-by: default avatarYang Zhong <yang.zhong@intel.com>
Link: https://lkml.kernel.org/r/20210615101639.291929-1-kai.huang@intel.com
parent efa16550

arch/x86/kernel/cpu/sgx/virt.c

+1 −0
Original line number Diff line number Diff line
@@ -212,6 +212,7 @@ static int sgx_vepc_release(struct inode *inode, struct file *file) 
		list_splice_tail(&secs_pages, &zombie_secs_pages);

	mutex_unlock(&zombie_secs_pages_lock);



	xa_destroy(&vepc->page_array);

	kfree(vepc);



	return 0;