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From: "Martin Ågren" <martin.agren@gmail.com>
To: Jeff King <peff@peff.net>
Cc: Git Mailing List <git@vger.kernel.org>
Subject: Re: [PATCH] fsck: avoid looking at NULL blob->object
Date: Sat, 9 Jun 2018 10:50:36 +0200	[thread overview]
Message-ID: <CAN0heSqHRpOerHV8tgA-ntU6QvYQMxgrXPCPsrVcHLKUSwANXQ@mail.gmail.com> (raw)
In-Reply-To: <20180609083159.GA6158@sigill.intra.peff.net>

On 9 June 2018 at 10:32, Jeff King <peff@peff.net> wrote:
> Except it _does_ do one non-trivial thing, which is call the
> report() function, which wants us to pass a pointer to a
> "struct object". Which we don't have (we have only a "struct
> object_id"). So we erroneously passed the NULL object, which

s/passed/dereferenced/? Probably doesn't affect the fix though.

> ends up segfaulting.

>                 blob = lookup_blob(oid);
>                 if (!blob) {
> -                       ret |= report(options, &blob->object,
> +                       struct object *obj = lookup_unknown_object(oid->hash);
> +                       ret |= report(options, obj,
>                                       FSCK_MSG_GITMODULES_BLOB,
>                                       "non-blob found at .gitmodules");

  parent reply	other threads:[~2018-06-09  8:50 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-06-09  8:32 [PATCH] fsck: avoid looking at NULL blob->object Jeff King
2018-06-09  8:38 ` Eric Sunshine
2018-06-09  9:19   ` Jeff King
2018-06-09  8:45 ` Duy Nguyen
2018-06-09  9:20   ` Jeff King
2018-06-09  8:50 ` Martin Ågren [this message]
2018-06-09  9:21   ` Jeff King
2018-06-09 13:44     ` Martin Ågren
2018-06-12  9:51       ` Jeff King
2018-06-09  9:30 ` [PATCH v2 0/2] .gitmodules fsck cleanups Jeff King
2018-06-09  9:31   ` [PATCH v2 1/2] t7415: don't bother creating commit for symlink test Jeff King
2018-06-09  9:46     ` SZEDER Gábor
2018-06-11  8:35       ` [PATCH v3 0/2] .gitmodules fsck cleanups Jeff King
2018-06-11  8:35         ` [PATCH v3 1/2] t7415: don't bother creating commit for symlink test Jeff King
2018-06-11  8:35         ` [PATCH v3 2/2] fsck: avoid looking at NULL blob->object Jeff King
2018-06-09  9:31   ` [PATCH v2 " Jeff King
2018-06-09  9:50     ` SZEDER Gábor

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