commit 187cd44e147ec7245ddd97bbd3305d29583288a9
author Al Viro <viro@zeniv.linux.org.uk> Sun Apr 22 16:51:36 2012 -0400
committer Al Viro <viro@zeniv.linux.org.uk> Mon May 21 23:59:21 2012 -0400
tree 53d312b49553b7000a1e06d055224759a5f75332
parent 9a07880222b6e50cee2c2d66270cff0c34bfe7b8

sparc: missing checks of __get_user()/__put_user() return values

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

arch/sparc/kernel/signal32.c

diff --git a/arch/sparc/kernel/signal32.c b/arch/sparc/kernel/signal32.c
index 948700f..bb1513e 100644
--- a/arch/sparc/kernel/signal32.c
+++ b/arch/sparc/kernel/signal32.c
@@ -215,8 +215,9 @@
 	    (((unsigned long) sf) & 3))
 		goto segv;
 
-	get_user(pc, &sf->info.si_regs.pc);
-	__get_user(npc, &sf->info.si_regs.npc);
+	if (get_user(pc, &sf->info.si_regs.pc) ||
+	    __get_user(npc, &sf->info.si_regs.npc))
+		goto segv;
 
 	if ((pc | npc) & 3)
 		goto segv;
@@ -305,8 +306,9 @@
 	    (((unsigned long) sf) & 3))
 		goto segv;
 
-	get_user(pc, &sf->regs.pc);
-	__get_user(npc, &sf->regs.npc);
+	if (get_user(pc, &sf->regs.pc) || 
+	    __get_user(npc, &sf->regs.npc))
+		goto segv;
 
 	if ((pc | npc) & 3)
 		goto segv;