Messages in this thread Patch in this message | | | From | Kai Huang <> | Subject | [PATCH v2] x86/sgx: Add missing xa_destroy() when virtual EPC is destroyed | Date | Wed, 16 Jun 2021 12:36:34 +1200 |
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xa_destroy() needs to be called to destroy virtual EPC's page array before calling kfree() to free the virtual EPC. Currently it is not called. Add the missing xa_destroy() to fix.
Fixes: 540745ddbc70 ("x86/sgx: Introduce virtual EPC for use by KVM guests") Tested-by: Yang Zhong <yang.zhong@intel.com> Acked-by: Dave Hansen <dave.hansen@intel.com> Signed-off-by: Kai Huang <kai.huang@intel.com> --- v1->v2:
- Fixed typo in commit msg - Added Dave's Acked-by --- arch/x86/kernel/cpu/sgx/virt.c | 1 + 1 file changed, 1 insertion(+)
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; -- 2.31.1
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