tjh.dev / kernel
Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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signals: sys_ssetmask() uses uninitialized newmask

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>
Cc: stable@kernel.org # v3.5+
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

authored by

Oleg Nesterov and committed by
Linus Torvalds 5ba53ff6 5f243b9b

+1
+1
kernel/signal.c
··· 3286 3286 int old = current->blocked.sig[0]; 3287 3287 sigset_t newset; 3288 3288 3289 + siginitset(&newset, newmask); 3289 3290 set_current_blocked(&newset); 3290 3291 3291 3292 return old;