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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c/105357] dereferenced ptr on param stack gets over written
Date: Sat, 23 Apr 2022 08:06:44 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D105357

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |INVALID
             Status|UNCONFIRMED                 |RESOLVED

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
You need better error checking in your code.
scanf can fail and scanf with %s without a size can definitely have a buffer
overflow.

You might be able to detect some of this with -fsanitize=3Daddress or by us=
ing
valgrind.

This is almost definitely not a bug in GCC.=