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Diffstat (limited to 'kernel/kmod.c')
-rw-r--r--kernel/kmod.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/kernel/kmod.c b/kernel/kmod.c
index 385c31a1bdb..9fcb53a11f8 100644
--- a/kernel/kmod.c
+++ b/kernel/kmod.c
@@ -37,6 +37,8 @@
#include <linux/suspend.h>
#include <asm/uaccess.h>
+#include <trace/events/module.h>
+
extern int max_threads;
static struct workqueue_struct *khelper_wq;
@@ -78,6 +80,10 @@ int __request_module(bool wait, const char *fmt, ...)
#define MAX_KMOD_CONCURRENT 50 /* Completely arbitrary value - KAO */
static int kmod_loop_msg;
+ ret = security_kernel_module_request();
+ if (ret)
+ return ret;
+
va_start(args, fmt);
ret = vsnprintf(module_name, MODULE_NAME_LEN, fmt, args);
va_end(args);
@@ -108,6 +114,8 @@ int __request_module(bool wait, const char *fmt, ...)
return -ENOMEM;
}
+ trace_module_request(module_name, wait, _RET_IP_);
+
ret = call_usermodehelper(modprobe_path, argv, envp,
wait ? UMH_WAIT_PROC : UMH_WAIT_EXEC);
atomic_dec(&kmod_concurrent);
@@ -462,6 +470,7 @@ int call_usermodehelper_exec(struct subprocess_info *sub_info,
int retval = 0;
BUG_ON(atomic_read(&sub_info->cred->usage) != 1);
+ validate_creds(sub_info->cred);
helper_lock();
if (sub_info->path[0] == '\0')