On Tue, Aug 06, 2019 at 03:46:33PM +0800, chenzefeng wrote:
> 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@xxxxxxxxxx>
> ---
> arch/ia64/kernel/module.c | 8 ++++++--
> 1 file changed, 6 insertions(+), 2 deletions(-)
<formletter>
This is not the correct way to submit patches for inclusion in the
stable kernel tree. Please read:
https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html
for how to do this properly.
</formletter>
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