fix bug forksever fail not detected when using read_timed
MODIFY
src/afl-forkserver.c
src/afl-forkserver.c
@@ -352,18 +352,23 @@ void afl_fsrv_start(afl_forkserver_t *fsrv, char **argv,
rlen = 0;
if (fsrv->exec_tmout) {
- rlen = 4;
- u32 time = read_timed(fsrv->fsrv_st_fd, &status, rlen,
+ u32 time = read_timed(fsrv->fsrv_st_fd, &status, 4,
fsrv->exec_tmout * FORK_WAIT_MULT, stop_soon_p);
- if (time > fsrv->exec_tmout * FORK_WAIT_MULT) {
+ if (!time) {
+
+ kill(fsrv->fsrv_pid, SIGKILL);
+
+ } else if (time > fsrv->exec_tmout * FORK_WAIT_MULT) {
fsrv->child_timed_out = 1;
kill(fsrv->fsrv_pid, SIGKILL);
- }
+ } else {
+
+ rlen = 4;
- if (!time) { kill(fsrv->fsrv_pid, SIGKILL); }
+ }
} else {

fix bug forksever fail not detected when using read_timed