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bug#24996: Bug in PR utility

From: Marcel Böhme
Subject: bug#24996: Bug in PR utility
Date: Wed, 23 Nov 2016 10:34:11 +0800

Dear all,

There is an integer overflow in pr.c:1880 which results in memory exhaustion. 
The bug was found with AFLFast, a fork of AFL.

How to reproduce:
$ pr -l55555555 -5

I was actually fuzzing Coreutils 6.10 as part of ongoing experiments.
Also confirmed for Coreutils 8.25.

Best regards,
- Marcel

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