From: Steven Rostedt <[email protected]>

This patch has been added to the 3.12 stable tree. If you have any
objections, please let us know.

===============

commit 37815bf866ab6722a47550f8d25ad3f1a16a680c upstream.

The module notifier call chain for MODULE_STATE_COMING was moved up before
the parsing of args, into the complete_formation() call. But if the module 
failed
to load after that, the notifier call chain for MODULE_STATE_GOING was
never called and that prevented the users of those call chains from
cleaning up anything that was allocated.

Link: http://lkml.kernel.org/r/[email protected]

Reported-by: Pontus Fuchs <[email protected]>
Fixes: 4982223e51e8 "module: set nx before marking module MODULE_STATE_COMING"
Signed-off-by: Steven Rostedt <[email protected]>
Signed-off-by: Rusty Russell <[email protected]>
Signed-off-by: Jiri Slaby <[email protected]>
---
 kernel/module.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/kernel/module.c b/kernel/module.c
index 3e3f90d82ecc..7d1c2ea27898 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -3337,6 +3337,9 @@ static int load_module(struct load_info *info, const char 
__user *uargs,
        module_bug_cleanup(mod);
        mutex_unlock(&module_mutex);
 
+       blocking_notifier_call_chain(&module_notify_list,
+                                    MODULE_STATE_GOING, mod);
+
        /* we can't deallocate the module until we clear memory protection */
        unset_module_init_ro_nx(mod);
        unset_module_core_ro_nx(mod);
-- 
2.6.4

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