diff options
Diffstat (limited to 'kernel/module.c')
-rw-r--r-- | kernel/module.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/kernel/module.c b/kernel/module.c index 2383e60fcf3f..278e9b6762bb 100644 --- a/kernel/module.c +++ b/kernel/module.c | |||
@@ -73,6 +73,9 @@ DEFINE_MUTEX(module_mutex); | |||
73 | EXPORT_SYMBOL_GPL(module_mutex); | 73 | EXPORT_SYMBOL_GPL(module_mutex); |
74 | static LIST_HEAD(modules); | 74 | static LIST_HEAD(modules); |
75 | 75 | ||
76 | /* Block module loading/unloading? */ | ||
77 | int modules_disabled = 0; | ||
78 | |||
76 | /* Waiting for a module to finish initializing? */ | 79 | /* Waiting for a module to finish initializing? */ |
77 | static DECLARE_WAIT_QUEUE_HEAD(module_wq); | 80 | static DECLARE_WAIT_QUEUE_HEAD(module_wq); |
78 | 81 | ||
@@ -778,7 +781,7 @@ SYSCALL_DEFINE2(delete_module, const char __user *, name_user, | |||
778 | char name[MODULE_NAME_LEN]; | 781 | char name[MODULE_NAME_LEN]; |
779 | int ret, forced = 0; | 782 | int ret, forced = 0; |
780 | 783 | ||
781 | if (!capable(CAP_SYS_MODULE)) | 784 | if (!capable(CAP_SYS_MODULE) || modules_disabled) |
782 | return -EPERM; | 785 | return -EPERM; |
783 | 786 | ||
784 | if (strncpy_from_user(name, name_user, MODULE_NAME_LEN-1) < 0) | 787 | if (strncpy_from_user(name, name_user, MODULE_NAME_LEN-1) < 0) |
@@ -2338,7 +2341,7 @@ SYSCALL_DEFINE3(init_module, void __user *, umod, | |||
2338 | int ret = 0; | 2341 | int ret = 0; |
2339 | 2342 | ||
2340 | /* Must have permission */ | 2343 | /* Must have permission */ |
2341 | if (!capable(CAP_SYS_MODULE)) | 2344 | if (!capable(CAP_SYS_MODULE) || modules_disabled) |
2342 | return -EPERM; | 2345 | return -EPERM; |
2343 | 2346 | ||
2344 | /* Only one module load at a time, please */ | 2347 | /* Only one module load at a time, please */ |