Merge branch 'kvm-arm/vgic-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git...

[firefly-linux-kernel-4.4.55.git] / arch / s390 / kernel / signal.c

diff --git a/arch/s390/kernel/signal.c b/arch/s390/kernel/signal.c
index 9c6e747a5e1eacce6bf4a9bf9730550b5137f98f..c45becf82e0179e17fcc9b1372b1ba25ef7c2131 100644 (file)
--- a/arch/s390/kernel/signal.c
+++ b/arch/s390/kernel/signal.c
@@ -116,8 +116,6 @@ SYSCALL_DEFINE0(sigreturn)
        sigframe __user *frame = (sigframe __user *)regs->gprs[15];
        sigset_t set;
 
-       if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
-               goto badframe;
        if (__copy_from_user(&set.sig, &frame->sc.oldmask, _SIGMASK_COPY_SIZE))
                goto badframe;
        set_current_blocked(&set);
@@ -135,8 +133,6 @@ SYSCALL_DEFINE0(rt_sigreturn)
        rt_sigframe __user *frame = (rt_sigframe __user *)regs->gprs[15];
        sigset_t set;
 
-       if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
-               goto badframe;
        if (__copy_from_user(&set.sig, &frame->uc.uc_sigmask, sizeof(set)))
                goto badframe;
        set_current_blocked(&set);
@@ -195,8 +191,6 @@ static int setup_frame(int sig, struct k_sigaction *ka,
        sigframe __user *frame;
 
        frame = get_sigframe(ka, regs, sizeof(sigframe));
-       if (!access_ok(VERIFY_WRITE, frame, sizeof(sigframe)))
-               goto give_sigsegv;
 
        if (frame == (void __user *) -1UL)
                goto give_sigsegv;
@@ -264,8 +258,6 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
        rt_sigframe __user *frame;
 
        frame = get_sigframe(ka, regs, sizeof(rt_sigframe));
-       if (!access_ok(VERIFY_WRITE, frame, sizeof(rt_sigframe)))
-               goto give_sigsegv;
 
        if (frame == (void __user *) -1UL)
                goto give_sigsegv;