> So you fixed the nonexistent race only. The real race is that the module
Umm I fixed the small race. You are right that there is a second race.
> uninitialized vmalloc'd (module_map'd) memory), then the module data
> (including the exception table) gets copied.
> The race window is from the first copy_from_user in sys_init_module until
> the second one.
Yep. Obvious answer. Ignore exception tables for modules that are not
MOD_RUNNING.
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