gcc generated long read out of bounds segfault

Andreas Schwab schwab@linux-m68k.org
Sat Feb 22 07:49:00 GMT 2014


David Fries <David@Fries.net> writes:

> The attached program sets up and reads through the array with extra
> padding at the of the array from 8 bytes to 0 bytes.  Padding from 4
> to 0 crashes.

This program has undefined behaviour because you are using unaligned
pointers.

Andreas.

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Andreas Schwab, schwab@linux-m68k.org
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