Fix copying between the host and target signal sets for the case when the target set is larger than the host set.
sigismember() returns 1 if the specified signal number is a member of the specified signal set, but it can also return -1 if an error occurs (e.g. an out of range signal number is specified). All non-zero values would cause the signal to be added, so a comparison with 1 is added to assure that only the signals which are really in the set get added to the other set. Signed-off-by: Miloš Stojanović <milos.stojano...@rt-rk.com> --- linux-user/signal.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/linux-user/signal.c b/linux-user/signal.c index 59d70ec..d72caaf 100644 --- a/linux-user/signal.c +++ b/linux-user/signal.c @@ -149,7 +149,7 @@ static void host_to_target_sigset_internal(target_sigset_t *d, int i; target_sigemptyset(d); for (i = 1; i <= TARGET_NSIG; i++) { - if (sigismember(s, i)) { + if (sigismember(s, i) == 1) { target_sigaddset(d, host_to_target_signal(i)); } } @@ -171,7 +171,7 @@ static void target_to_host_sigset_internal(sigset_t *d, int i; sigemptyset(d); for (i = 1; i <= TARGET_NSIG; i++) { - if (target_sigismember(s, i)) { + if (target_sigismember(s, i) == 1) { sigaddset(d, target_to_host_signal(i)); } } -- 1.9.1