]> 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)
committerJiri Slaby <jslaby@suse.cz>
Tue, 13 Dec 2016 16:01:12 +0000 (17:01 +0100)
[ Upstream commit 07b5ab3f71d318e52c18cc3b73c1d44c908aacfa ]

Signed-off-by: Andreas Larsson <andreas@gaisler.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
arch/sparc/kernel/signal_32.c

index e751dbc527e2601b2523a3ee59ac5b6050414293..7e9dfc4fcc2346320aa3c6af8c5b8f893c09a2c0 100644 (file)
@@ -88,7 +88,7 @@ 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]))
@@ -149,7 +149,7 @@ 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]))