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gawk 3.1.3l: write beyond array bounds
From: |
Andreas Schwab |
Subject: |
gawk 3.1.3l: write beyond array bounds |
Date: |
Fri, 06 Aug 2004 16:55:19 +0200 |
User-agent: |
Gnus/5.110002 (No Gnus v0.2) Emacs/21.3.50 (gnu/linux) |
GAWK's private implementation of random writes beyond array bounds if
sizeof(long) > 4. This has been corrected in Glibc's version of random,
which uses int32_t instead of long throughout. Previously, the state
array was big enough for sizeof(long) == 8, but the following change broke
that:
Sun Sep 21 18:34:32 2003 Arnold D. Robbins <address@hidden>
* builtin.c (state): Only needs to be 256 bytes, initstate() can't
use any more than that. Well whadayaknow.
But the real bug is in initstate, it doesn't correctly check the array
bounds.
Andreas.
--
Andreas Schwab, SuSE Labs, address@hidden
SuSE Linux AG, Maxfeldstraße 5, 90409 Nürnberg, Germany
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