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From: Junio C Hamano <gitster@pobox.com>
To: Emily Shaffer <emilyshaffer@google.com>
Cc: Jeff King <peff@peff.net>, git@vger.kernel.org
Subject: Re: [RFC PATCH] unpack-trees: watch for out-of-range index position
Date: Wed, 08 Jan 2020 12:35:29 -0800	[thread overview]
Message-ID: <xmqqo8vd1yb2.fsf@gitster-ct.c.googlers.com> (raw)
In-Reply-To: <20200108193833.GD181522@google.com> (Emily Shaffer's message of "Wed, 8 Jan 2020 11:38:33 -0800")

Emily Shaffer <emilyshaffer@google.com> writes:

>> > The new condition you added looks correct to me. I suspect this BUG()
>> > should not be a BUG() at all, though. It's not necessarily a logic error
>> > inside Git, but as you showed it could indicate corrupt data we read
>> > from disk. The true is probably same of the "pos >= 0" condition checked
>> > above.
>> 
>> It does not sound like a BUG to me, either, but the new condition
>> does look correct to me, too.  We can turn it into die() later if
>> somebody truly cares ;-)
>> 
>> Thanks, both.  Will queue.
>
> Thanks much for the quick turnaround. If I hear more noise I'll give it
> a try with die() or error code instead, but for now I'll move on to the
> next bug on my list. :)

By the way, it is somewhat sad that we proceeded that far in the
first place---such a corrupt on-disk index would have caused an
early die() if we did not get rid of the trailing-hash integrity
check.

  reply	other threads:[~2020-01-08 20:35 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-08  2:31 [RFC PATCH] unpack-trees: watch for out-of-range index position Emily Shaffer
2020-01-08  7:15 ` Jeff King
2020-01-08 17:30   ` Junio C Hamano
2020-01-08 19:38     ` Emily Shaffer
2020-01-08 20:35       ` Junio C Hamano [this message]
2020-01-09  7:52         ` Jeff King
2020-01-09 22:46           ` Emily Shaffer
2020-01-10  6:37             ` Jeff King
2020-01-10 23:07               ` Emily Shaffer

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