Commit 14132a5b authored by Jarkko Sakkinen's avatar Jarkko Sakkinen Committed by Borislav Petkov
Browse files

x86/sgx: Return -ERESTARTSYS in sgx_ioc_enclave_add_pages() 



Return -ERESTARTSYS instead of -EINTR in sgx_ioc_enclave_add_pages()
when interrupted before any pages have been processed. At this point
ioctl can be obviously safely restarted.

Reported-by: default avatarHaitao Huang <haitao.huang@intel.com>
Signed-off-by: default avatarJarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: default avatarBorislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20201118213932.63341-1-jarkko@kernel.org
parent 0eaa8d15

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

+1 −1
Original line number Diff line number Diff line
@@ -444,7 +444,7 @@ static long sgx_ioc_enclave_add_pages(struct sgx_encl *encl, void __user *arg) 
	for (c = 0 ; c < add_arg.length; c += PAGE_SIZE) {

		if (signal_pending(current)) {

			if (!c)

				ret = -EINTR;

				ret = -ERESTARTSYS;



			break;

		}