do_rt_sigreturn forgets to initialize the signal mask variable before
trying to use it to restore the mask, so the signal mask is undefined
after do_rt_sigreturn. This bug has been in all the time since
7181155d when do_rt_sigreturn was implemented for m68k.
---
linux-user/signal.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/linux-user/signal.c b/linux-user/signal.c
index e03ed60..ae1014b 100644
--- a/linux-user/signal.c
+++ b/linux-user/signal.c
@@ -5260,11 +5260,14 @@ long do_rt_sigreturn(CPUM68KState *env)
abi_ulong frame_addr = env->aregs[7] - 4;
target_sigset_t target_set;
sigset_t set;
- int d0;
+ int d0, i;
if (!lock_user_struct(VERIFY_READ, frame, frame_addr, 1))
goto badframe;
+ for(i = 0; i < TARGET_NSIG_WORDS; i++) {
+ target_set.sig[i] = frame->uc.tuc_sigmask.sig[i];
+ }
target_to_host_sigset_internal(&set, &target_set);
do_sigprocmask(SIG_SETMASK, &set, NULL);
--
2.1.4
