[ 092/123] signals: sys_ssetmask() uses uninitialized newmask

Greg Kroah-Hartman
2013-01-09T20:56:26Z

From: Oleg Nesterov <oleg@redhat.com>

commit 5ba53ff648e785445a32ba39112ed07e4cf588d0 upstream.

Commit 77097ae503b1 ("most of set_current_blocked() callers want
SIGKILL/SIGSTOP removed from set") removed the initialization of newmask
by accident, causing ltp to complain like this:

ssetmask01 1 TFAIL : sgetmask() failed: TEST_ERRNO=???(0): Success

Restore the proper initialization.

Reported-and-tested-by: CAI Qian <caiqian@redhat.com>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
kernel/signal.c | 1 +
1 file changed, 1 insertion(+)

--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -3221,6 +3221,7 @@ SYSCALL_DEFINE1(ssetmask, int, newmask)
int old = current->blocked.sig[0];
sigset_t newset;

+ siginitset(&newset, newmask);
set_current_blocked(&newset);

return old;