add a flag to disable setpgid syscall

It is broken on some of our test systems.

1 files changed, 4 insertions, 0 deletions

diff --git a/tools/syz-execprog/execprog.go b/tools/syz-execprog/execprog.go
index a94b87878..487b6e0d6 100644
--- a/tools/syz-execprog/execprog.go
+++ b/tools/syz-execprog/execprog.go
@@ -34,6 +34,7 @@ var (
 	flagDedup     = flag.Bool("dedup", false, "deduplicate coverage in executor")
 	flagLoop      = flag.Bool("loop", false, "execute programs in a loop")
 	flagProcs     = flag.Int("procs", 1, "number of parallel processes to execute programs")
+	flagNoPgid    = flag.Bool("nopgid", false, "don't use setpgid syscall")
 	flagTimeout   = flag.Duration("timeout", 10*time.Second, "execution timeout")
 )
 
@@ -76,6 +77,9 @@ func main() {
 	if *flagNobody {
 		flags |= ipc.FlagDropPrivs
 	}
+	if *flagNoPgid {
+		flags |= ipc.FlagNoSetpgid
+	}
 
 	var wg sync.WaitGroup
 	wg.Add(*flagProcs)