From b44df334a7e909d88cf5c54cc0481b4e2eaeca23 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Mon, 1 May 2006 12:16:15 -0700 Subject: [PATCH] [PATCH] s390: bug in setup_rt_frame Consider return value of __put_user() when setting up a signal frame instead of ignoring it. Cc: Martin Schwidefsky Signed-off-by: Heiko Carstens Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/s390/kernel/signal.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/s390/kernel/signal.c b/arch/s390/kernel/signal.c index ae1927e48cfb..d48cfc726b68 100644 --- a/arch/s390/kernel/signal.c +++ b/arch/s390/kernel/signal.c @@ -358,8 +358,9 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, } else { regs->gprs[14] = (unsigned long) frame->retcode | PSW_ADDR_AMODE; - err |= __put_user(S390_SYSCALL_OPCODE | __NR_rt_sigreturn, - (u16 __user *)(frame->retcode)); + if (__put_user(S390_SYSCALL_OPCODE | __NR_rt_sigreturn, + (u16 __user *)(frame->retcode))) + goto give_sigsegv; } /* Set up backchain. */ -- 2.30.2