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authorLinus Torvalds <torvalds@linux-foundation.org>2009-06-11 10:01:41 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-06-11 10:01:41 -0700
commit3296ca27f50ecbd71db1d808c7a72d311027f919 (patch)
tree833eaa58b2013bda86d4bd95faf6efad7a2d5ca4 /kernel/module.c
parente893123c7378192c094747dadec326b7c000c190 (diff)
parent73fbad283cfbbcf02939bdbda31fc4a30e729cca (diff)
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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6: (44 commits) nommu: Provide mmap_min_addr definition. TOMOYO: Add description of lists and structures. TOMOYO: Remove unused field. integrity: ima audit dentry_open failure TOMOYO: Remove unused parameter. security: use mmap_min_addr indepedently of security models TOMOYO: Simplify policy reader. TOMOYO: Remove redundant markers. SELinux: define audit permissions for audit tree netlink messages TOMOYO: Remove unused mutex. tomoyo: avoid get+put of task_struct smack: Remove redundant initialization. integrity: nfsd imbalance bug fix rootplug: Remove redundant initialization. smack: do not beyond ARRAY_SIZE of data integrity: move ima_counts_get integrity: path_check update IMA: Add __init notation to ima functions IMA: Minimal IMA policy and boot param for TCB IMA policy selinux: remove obsolete read buffer limit from sel_read_bool ...
Diffstat (limited to 'kernel/module.c')
-rw-r--r--kernel/module.c7
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);
EXPORT_SYMBOL_GPL(module_mutex);
static LIST_HEAD(modules);
+/* Block module loading/unloading? */
+int modules_disabled = 0;
+
/* Waiting for a module to finish initializing? */
static DECLARE_WAIT_QUEUE_HEAD(module_wq);
@@ -778,7 +781,7 @@ 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)
@@ -2338,7 +2341,7 @@ 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 */