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authorNils Bars <nils.bars@rub.de>2022-10-20 13:14:29 +0200
committerNils Bars <nils.bars@rub.de>2022-10-20 18:08:07 +0200
commitf84ea696606b3dd6ae40006e5efb9f178651e916 (patch)
tree3989c18c5f2705925d012b1ca4a6bd3bfa9f2c83 /src/afl-showmap.c
parent5ccf38941472bda9415d14edc4ecefaa43c79d67 (diff)
downloadafl++-f84ea696606b3dd6ae40006e5efb9f178651e916.tar.gz
Fix child reaping on fuzzer termination
This commit contains the following changes:
    - Call `waitpid()` on the child and the fork server when terminating the
      fuzzer; thus, we do not end up with zombies.
    - Rename `fsrv.kill_signal` to `fsrv.child_kill_signal`, since the
      documentation states that the signal is used to terminate the *child*.
    - Use SIGTERM instead of fsrv.(child)_kill_signal, thus the fork server
      can always reap the child.
Diffstat (limited to 'src/afl-showmap.c')
-rw-r--r--src/afl-showmap.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/src/afl-showmap.c b/src/afl-showmap.c
index 5e3fb67d..730a4ff1 100644
--- a/src/afl-showmap.c
+++ b/src/afl-showmap.c
@@ -129,7 +129,7 @@ static void kill_child() {
   timed_out = 1;
   if (fsrv->child_pid > 0) {
 
-    kill(fsrv->child_pid, fsrv->kill_signal);
+    kill(fsrv->child_pid, fsrv->child_kill_signal);
     fsrv->child_pid = -1;
 
   }
@@ -1258,7 +1258,7 @@ int main(int argc, char **argv_orig, char **envp) {
                                  : 0);
     be_quiet = save_be_quiet;
 
-    fsrv->kill_signal =
+    fsrv->child_kill_signal =
         parse_afl_kill_signal_env(getenv("AFL_KILL_SIGNAL"), SIGKILL);
 
     if (new_map_size) {
@@ -1472,4 +1472,3 @@ int main(int argc, char **argv_orig, char **envp) {
   exit(ret);
 
 }
-