Upgrade to 4.4.50-rt62

[kvmfornfv.git] / kernel / arch / sparc / kernel / sigutil_32.c

diff --git a/kernel/arch/sparc/kernel/sigutil_32.c b/kernel/arch/sparc/kernel/sigutil_32.c
index 0f6eebe..e5fe8ce 100644 (file)
--- a/kernel/arch/sparc/kernel/sigutil_32.c
+++ b/kernel/arch/sparc/kernel/sigutil_32.c
@@ -48,6 +48,10 @@ int save_fpu_state(struct pt_regs *regs, __siginfo_fpu_t __user *fpu)
 int restore_fpu_state(struct pt_regs *regs, __siginfo_fpu_t __user *fpu)
 {
        int err;
+
+       if (((unsigned long) fpu) & 3)
+               return -EFAULT;
+
 #ifdef CONFIG_SMP
        if (test_tsk_thread_flag(current, TIF_USEDFPU))
                regs->psr &= ~PSR_EF;
@@ -97,7 +101,10 @@ int restore_rwin_state(__siginfo_rwin_t __user *rp)
        struct thread_info *t = current_thread_info();
        int i, wsaved, err;
 
-       __get_user(wsaved, &rp->wsaved);
+       if (((unsigned long) rp) & 3)
+               return -EFAULT;
+
+       get_user(wsaved, &rp->wsaved);
        if (wsaved > NSWINS)
                return -EFAULT;