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Re: [PATCH v2 2/4] xfsprogs: fix integer overflow in xlog_find_verify_cy

To: Vivek Trivedi <t.vivek@xxxxxxxxxxx>
Subject: Re: [PATCH v2 2/4] xfsprogs: fix integer overflow in xlog_find_verify_cycle
From: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Sun, 20 Dec 2015 07:35:13 -0800
Cc: xfs@xxxxxxxxxxx, a.sahrawat@xxxxxxxxxxx, pankaj.m@xxxxxxxxxxx
Delivered-to: xfs@xxxxxxxxxxx
In-reply-to: <1449832143-26356-3-git-send-email-t.vivek@xxxxxxxxxxx>
References: <1449832143-26356-1-git-send-email-t.vivek@xxxxxxxxxxx> <1449832143-26356-3-git-send-email-t.vivek@xxxxxxxxxxx>
User-agent: Mutt/1.5.23 (2014-03-12)
On Fri, Dec 11, 2015 at 04:39:01PM +0530, Vivek Trivedi wrote:
> Fix unintentional integer overflow in xlog_find_verify_cycle.
> Reported by coverity.

xfs_daddr_t is a 64-bit integer.  How does replacing it with an int fix
overlows?

xlog_find_verify_cycle originates in the kernel code, so any fix
should probably be done there first.

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