]> git.ipfire.org Git - thirdparty/kernel/stable.git/commitdiff
sparc32: Fix inverted invalid_frame_pointer checks on sigreturns
authorAndreas Larsson <andreas@gaisler.com>
Wed, 9 Nov 2016 09:43:05 +0000 (10:43 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 26 Jan 2019 08:44:23 +0000 (09:44 +0100)
commit 07b5ab3f71d318e52c18cc3b73c1d44c908aacfa upstream.

Signed-off-by: Andreas Larsson <andreas@gaisler.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
arch/sparc/kernel/signal_32.c

index 8492291424ab580a4daf4a1164f52cefdda71090..d6ab14c2353d4e8d96d9642ca4f6ef8b73971750 100644 (file)
@@ -89,7 +89,7 @@ asmlinkage void do_sigreturn(struct pt_regs *regs)
        sf = (struct signal_frame __user *) regs->u_regs[UREG_FP];
 
        /* 1. Make sure we are not getting garbage from the user */
-       if (!invalid_frame_pointer(sf, sizeof(*sf)))
+       if (invalid_frame_pointer(sf, sizeof(*sf)))
                goto segv_and_exit;
 
        if (get_user(ufp, &sf->info.si_regs.u_regs[UREG_FP]))
@@ -150,7 +150,7 @@ asmlinkage void do_rt_sigreturn(struct pt_regs *regs)
 
        synchronize_user_stack();
        sf = (struct rt_signal_frame __user *) regs->u_regs[UREG_FP];
-       if (!invalid_frame_pointer(sf, sizeof(*sf)))
+       if (invalid_frame_pointer(sf, sizeof(*sf)))
                goto segv;
 
        if (get_user(ufp, &sf->regs.u_regs[UREG_FP]))