From: Peter Zijlstra <[email protected]> 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 <[email protected]> Reported-by: Arthur Marsh <[email protected]> Tested-by: Arthur Marsh <[email protected]> Fixes: 93c2e105f6bc ("module: Optimize __module_address() using a latched RB-tree") Signed-off-by: Peter Zijlstra (Intel) <[email protected]> Signed-off-by: Rusty Russell <[email protected]> https://jira.sw.ru/browse/PSBM-69081 (cherry picked from commit 758556bdc1c8a8dffea0ea9f9df891878cc2468c) Signed-off-by: Andrey Ryabinin <[email protected]> --- kernel/module.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/module.c b/kernel/module.c index 952a9582f840..a5ee99f0f7a0 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: -- 2.13.5 _______________________________________________ Devel mailing list [email protected] https://lists.openvz.org/mailman/listinfo/devel
