The commit is pushed to "branch-rh7-3.10.0-693.1.1.vz7.37.x-ovz" and will
appear at https://src.openvz.org/scm/ovz/vzkernel.git
after rh7-3.10.0-693.1.1.vz7.37.4
------>
commit 35062b91e08fda3dd589db23104226c38ffd1b9f
Author: Peter Zijlstra <pet...@infradead.org>
Date: Fri Sep 15 17:27:38 2017 +0300
module: Fix load_module() error path
The load_module() error path frees a module but forgot to take it out
of the mod_tree, leaving a dangling entry in the tree, causing havoc.
Cc: Mathieu Desnoyers <mathieu.desnoy...@efficios.com>
Reported-by: Arthur Marsh <arthur.ma...@internode.on.net>
Tested-by: Arthur Marsh <arthur.ma...@internode.on.net>
Fixes: 93c2e105f6bc ("module: Optimize __module_address() using a latched
RB-tree")
Signed-off-by: Peter Zijlstra (Intel) <pet...@infradead.org>
Signed-off-by: Rusty Russell <ru...@rustcorp.com.au>
https://jira.sw.ru/browse/PSBM-69081
(cherry picked from commit 758556bdc1c8a8dffea0ea9f9df891878cc2468c)
Signed-off-by: Andrey Ryabinin <aryabi...@virtuozzo.com>
---
kernel/module.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/kernel/module.c b/kernel/module.c
index 952a958..a5ee99f 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -3643,6 +3643,7 @@ static int load_module(struct load_info *info, const char
__user *uargs,
mutex_lock(&module_mutex);
/* Unlink carefully: kallsyms could be walking list. */
list_del_rcu(&mod->list);
+ mod_tree_remove(mod);
wake_up_all(&module_wq);
mutex_unlock(&module_mutex);
free_module:
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