[PATCH 1/1] __send_signal: pass q->info, not info, to userns_fixup_signal_uid (v2)

[Serge Hallyn]

Eric Biederman pointed out that passing info is a bug and could lead
to a NULL pointer deref to boot.

A collection of signal, securebits, filecaps, cap_bounds, and a few other ltp
tests passed with this kernel.

Changelog:
    Nov 18: previous patch missed a leading '&'

Signed-off-by: Serge Hallyn <serge.hallyn at canonical.com>
---
 kernel/signal.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/kernel/signal.c b/kernel/signal.c
index c0f0782..170586b 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -1118,7 +1118,7 @@ static int __send_signal(int sig, struct siginfo *info, struct task_struct *t,
 			break;
 		}
 
-		userns_fixup_signal_uid(info, t);
+		userns_fixup_signal_uid(&q->info, t);
 
 	} else if (!is_si_special(info)) {
 		if (sig >= SIGRTMIN && info->si_code != SI_USER) {
-- 
1.7.5.4