From a9a0ffed7ef93dd86695100cf081438a918d6026 Mon Sep 17 00:00:00 2001
From: Dmitry Vyukov <dvyukov@google.com>
Date: Wed, 27 Nov 2024 17:23:09 +0100
Subject: executor: mount gadgetfs

We can reach it at least with automatic descriptions.
---
 executor/common_linux.h | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

(limited to 'executor/common_linux.h')

diff --git a/executor/common_linux.h b/executor/common_linux.h
index 5fc1bec2c..e63b0479f 100644
--- a/executor/common_linux.h
+++ b/executor/common_linux.h
@@ -3906,6 +3906,7 @@ static void initialize_cgroups()
 #endif
 
 #if SYZ_EXECUTOR || SYZ_SANDBOX_NONE || SYZ_SANDBOX_NAMESPACE
+static void setup_gadgetfs();
 static void setup_binderfs();
 static void setup_fusectl();
 // Mount tmpfs and chroot into it in sandbox=none and sandbox=namespace.
@@ -3972,11 +3973,27 @@ static void sandbox_common_mount_tmpfs(void)
 		fail("chroot failed");
 	if (chdir("/"))
 		fail("chdir failed");
+	setup_gadgetfs();
 	setup_binderfs();
 	setup_fusectl();
 }
 #endif
 
+#if SYZ_EXECUTOR || SYZ_SANDBOX_NONE || SYZ_SANDBOX_NAMESPACE
+#include <sys/mount.h>
+#include <sys/stat.h>
+
+static void setup_gadgetfs()
+{
+	if (mkdir("/dev/gadgetfs", 0777)) {
+		debug("mkdir(/dev/gadgetfs) failed: %d\n", errno);
+	}
+	if (mount("gadgetfs", "/dev/gadgetfs", "gadgetfs", 0, NULL)) {
+		debug("mount of gadgetfs at /dev/gadgetfs failed: %d\n", errno);
+	}
+}
+#endif
+
 #if SYZ_EXECUTOR || SYZ_SANDBOX_NONE || SYZ_SANDBOX_SETUID || SYZ_SANDBOX_NAMESPACE || SYZ_SANDBOX_ANDROID
 #include <errno.h>
 #include <sys/mount.h>
-- 
cgit mrf-deployment