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Oleg Nesterov
authored
call_usermodehelper_exec() does nothing but returns success if path[0] == 0. The only user which needs this strange feature is request_module(), it can check modprobe_path[0] itself like other users do if they want to detect the "disabled by admin" case. Kill it. Not only it looks strange, it can confuse other callers. And this allows us to revert 264b83c0 ("usermodehelper: check subprocess_info->path != NULL"), do_execve(NULL) is safe. Signed-off-by:Oleg Nesterov <oleg@redhat.com> Acked-by:
Rusty Russell <rusty@rustcorp.com.au> Cc: Lucas De Marchi <lucas.de.marchi@gmail.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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