drivers/tty/vt/vt_ioctl.c

455

if (!valid_signal(arg) || arg < 1 || arg == SIGKILL)

fs/fcntl.c

428

if (!valid_signal(signum))

ipc/mqueue.c

1284

!valid_signal(notification->sigev_signo)) {

kernel/debug/kdb/kdb_main.c

2336

if ((sig >= 0) || !valid_signal(-sig)) {

kernel/fork.c

2727

if (!valid_signal(args->exit_signal))

kernel/ptrace.c

591

if (!valid_signal(data))

kernel/ptrace.c

852

if (!valid_signal(data))

kernel/signal.c

1536

if (!valid_signal(sig))

kernel/signal.c

1625

if (!valid_signal(sig))

kernel/signal.c

2183

if (WARN_ON_ONCE(!valid_signal(sig)))

kernel/signal.c

4318

if (!valid_signal(sig) || sig < 1 || (act && sig_kernel_only(sig)))

kernel/signal.c

805

if (!valid_signal(sig))

kernel/sys.c

2548

if (!valid_signal(arg2)) {

kernel/trace/bpf_trace.c

884

if (unlikely(!valid_signal(sig)))