1 files changed, 4 insertions, 0 deletions
diff --git a/libc/bionic/pthread.c b/libc/bionic/pthread.c
index ec3c459..f2d9cb3 100644
--- a/libc/bionic/pthread.c
+++ b/libc/bionic/pthread.c
@@ -1538,7 +1538,11 @@ int pthread_kill(pthread_t tid, int sig)
     int  old_errno = errno;
     pthread_internal_t * thread = (pthread_internal_t *)tid;
 
+    if (!thread)
+        return ESRCH;
+
     ret = tkill(thread->kernel_id, sig);
+
     if (ret < 0) {
         ret = errno;
         errno = old_errno;