Messages in this thread | | | Date | Fri, 10 May 2019 14:07:09 +0900 | From | Sergey Senozhatsky <> | Subject | Re: [PATCH] vsprintf: Do not break early boot with probing addresses |
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On (05/09/19 21:47), Linus Torvalds wrote: > [ Sorry about html and mobile crud, I'm not at the computer right now ] > How about we just undo the whole misguided probe_kernel_address() thing?
But the problem will remain - %pS/%pF on PPC (and some other arch-s) do dereference_function_descriptor(), which calls probe_kernel_address(). So if probe_kernel_address() starts to dump_stack(), then we are heading towards stack overflow. Unless I'm totally missing something.
-ss
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