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 f77ac32..eeb3f7b 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -778,6 +778,9 @@ static void wait_for_zero_refcount(struct module *mod) mutex_lock(&module_mutex); } +/* Block module loading/unloading? */ +int modules_disabled = 0; + SYSCALL_DEFINE2(delete_module, const char __user *, name_user, unsigned int, flags) { @@ -785,7 +788,7 @@ SYSCALL_DEFINE2(delete_module, const char __user *, name_user, char name[MODULE_NAME_LEN]; int ret, forced = 0; - if (!capable(CAP_SYS_MODULE)) + if (!capable(CAP_SYS_MODULE) || modules_disabled) return -EPERM; if (strncpy_from_user(name, name_user, MODULE_NAME_LEN-1) < 0) @@ -2349,7 +2352,7 @@ SYSCALL_DEFINE3(init_module, void __user *, umod, int ret = 0; /* Must have permission */ - if (!capable(CAP_SYS_MODULE)) + if (!capable(CAP_SYS_MODULE) || modules_disabled) return -EPERM; /* Only one module load at a time, please */ |