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authorKai Huang <kai.huang@intel.com>2021-06-15 13:16:39 +0300
committerBorislav Petkov <bp@suse.de>2021-06-15 19:03:45 +0300
commit4692bc775d2180a937335ccba0edce557103d44a (patch)
tree64da667e5326aa89e5a8b382cdcd484cc9ce8d4e /arch
parentefa165504943f2128d50f63de0c02faf6dcceb0d (diff)
downloadlinux-4692bc775d2180a937335ccba0edce557103d44a.tar.xz
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: 540745ddbc70 ("x86/sgx: Introduce virtual EPC for use by KVM guests") Signed-off-by: Kai Huang <kai.huang@intel.com> Signed-off-by: Borislav Petkov <bp@suse.de> Acked-by: Dave Hansen <dave.hansen@intel.com> Tested-by: Yang Zhong <yang.zhong@intel.com> Link: https://lkml.kernel.org/r/20210615101639.291929-1-kai.huang@intel.com
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/kernel/cpu/sgx/virt.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/sgx/virt.c b/arch/x86/kernel/cpu/sgx/virt.c
index 6ad165a5c0cc..64511c4a5200 100644
--- a/arch/x86/kernel/cpu/sgx/virt.c
+++ b/arch/x86/kernel/cpu/sgx/virt.c
@@ -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;