[PATCH 1/2] signals: sys_ssetmask() uses uninitialized newmask

From: Oleg Nesterov
Date: Sat Jan 05 2013 - 13:13:19 EST

77097ae5 "most of set_current_blocked() callers want SIGKILL/SIGSTOP
removed from set" removed the initialization of newmask by accident,

Reported-by: CAI Qian <caiqian@xxxxxxxxxx>
Signed-off-by: Oleg Nesterov <oleg@xxxxxxxxxx>
Cc: stable@xxxxxxxxxx # v3.5+
kernel/signal.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/kernel/signal.c b/kernel/signal.c
index 7aaa51d..9692499 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -3286,6 +3286,7 @@ SYSCALL_DEFINE1(ssetmask, int, newmask)
int old = current->blocked.sig[0];
sigset_t newset;

+ siginitset(&newset, newmask);

return old;

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