Messages in this thread | | | From | Linus Torvalds <> | Date | Sun, 10 Mar 2019 14:52:02 -0700 | Subject | Re: [PATCH v1 2/6] lib: scanf: handle integer overflows in vsscanf |
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On Sun, Mar 10, 2019 at 2:06 PM Rasmus Villemoes <linux@rasmusvillemoes.dk> wrote: > > IIRC, this has been attempted before, causing a userspace regression > because some sysfs/procfs file matched with %u or %x, and somebody wrote > -1 to get 0xffffffff .
.. which is correct anyway. That's how scanf is supposed to work.
If somebody needs overflow checking, they shouldn't be using scanf.
Linus
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