The following commit has been merged into the x86/urgent branch of tip: Commit-ID: 4692bc775d2180a937335ccba0edce557103d44a Gitweb: https://git.kernel.org/tip/4692bc775d2180a937335ccba0edce557103d44a Author: Kai Huang <kai.huang@xxxxxxxxx> AuthorDate: Tue, 15 Jun 2021 22:16:39 +12:00 Committer: Borislav Petkov <bp@xxxxxxx> CommitterDate: Tue, 15 Jun 2021 18:03:45 +02:00 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@xxxxxxxxx> Signed-off-by: Borislav Petkov <bp@xxxxxxx> Acked-by: Dave Hansen <dave.hansen@xxxxxxxxx> Tested-by: Yang Zhong <yang.zhong@xxxxxxxxx> Link: https://lkml.kernel.org/r/20210615101639.291929-1-kai.huang@xxxxxxxxx --- 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 6ad165a..64511c4 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;
![]() |