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[ Upstream commit c5e5c48c16422521d363c33cfb0dcf58f88c119b ]
The function free_module in file kernel/module.c as follow:
void free_module(struct module *mod) {
......
module_arch_cleanup(mod);
......
module_arch_freeing_init(mod);
......
}
Both module_arch_cleanup and module_arch_freeing_init function
would free the mod->arch.init_unw_table, which cause double free.
Here, set mod->arch.init_unw_table = NULL after remove the unwind
table to avoid double free.
Signed-off-by: chenzefeng <chenzefeng2@huawei.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
06e87c9504