sys/linux: add syz_execute_func

The function executes random code.

Update #310

2 files changed, 9 insertions, 1 deletions

diff --git a/pkg/host/host.go b/pkg/host/host.go
index 6394dd4a0..d048b2ade 100644
--- a/pkg/host/host.go
+++ b/pkg/host/host.go
@@ -21,7 +21,13 @@ func DetectSupportedSyscalls(target *prog.Target, sandbox string) (
 		return supported, unsupported, nil
 	}
 	for _, c := range target.Syscalls {
-		ok, reason := isSupported(c, sandbox)
+		ok, reason := false, ""
+		switch c.CallName {
+		case "syz_execute_func":
+			ok = true
+		default:
+			ok, reason = isSupported(c, sandbox)
+		}
 		if ok {
 			supported[c] = true
 		} else {
diff --git a/pkg/host/host_linux.go b/pkg/host/host_linux.go
index dd3e146c4..3386113ee 100644
--- a/pkg/host/host_linux.go
+++ b/pkg/host/host_linux.go
@@ -205,6 +205,8 @@ func isSupportedSyzkall(sandbox string, c *prog.Syscall) (bool, string) {
 		return isSupportedFilesystem(fstype)
 	case "syz_read_part_table":
 		return onlySandboxNone(sandbox)
+	case "syz_execute_func":
+		return true, ""
 	}
 	panic("unknown syzkall: " + c.Name)
 }