check for active_thread != NULL in syscalls.c before using it

fixes #498
2025-12-30 00:41:17 +01:00 · 2014-01-31 09:30:04 +01:00 · 2014-01-31 09:30:04 +01:00 · fd083c95a6
commit fd083c95a6
parent d53744e07c
1 changed files with 1 additions and 0 deletions
--- a/cpu/native/syscalls.c
+++ b/cpu/native/syscalls.c
@ -70,6 +70,7 @@ void _native_syscall_leave()
            && (_native_in_isr == 0)
            && (_native_in_syscall == 0)
            && (native_interrupts_enabled == 1)
+            && (active_thread != NULL)
       )
    {
        _native_in_isr = 1;