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From: Taylor Blau <me@ttaylorr.com>
To: Jeff King <peff@peff.net>
Cc: git@vger.kernel.org, "Ævar Arnfjörð Bjarmason" <avarab@gmail.com>
Subject: Re: [PATCH 0/9] reducing memory allocations for v2 servers
Date: Tue, 14 Sep 2021 13:30:19 -0400	[thread overview]
Message-ID: <YUDcK3/rCCybKk1w@nand.local> (raw)
In-Reply-To: <YUC/6n1hhUbMJiLw@coredump.intra.peff.net>

On Tue, Sep 14, 2021 at 11:29:46AM -0400, Jeff King wrote:
> While looking at [1], I noticed that v2 servers will read a few bits of
> client input into strvecs. Even though we expect these to be small-ish,
> there's nothing preventing a client from sending us a bunch of junk and
> wasting memory.
>
> This series changes that, putting a cap on how much data we'll receive.
> The two spots are the "capabilities" list we receive (before we even
> dispatch to a particular command like ls-refs or fetch), and the
> ref-prefix list we receive for ls-refs.
>
> [...]

Thanks. I reviewed this series carefully and all of my comments were
either of the form "you could have written it this way, but I'm equally
happy with what you wrote here" or "this behavior change won't affect
real users and so I'm OK with it".

    Reviewed-by: Taylor Blau <me@ttaylorr.com>

Thanks,
Taylor

  parent reply	other threads:[~2021-09-14 17:30 UTC|newest]

Thread overview: 77+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-14 15:29 [PATCH 0/9] reducing memory allocations for v2 servers Jeff King
2021-09-14 15:30 ` [PATCH 1/9] serve: rename is_command() to parse_command() Jeff King
2021-09-14 15:30 ` [PATCH 2/9] serve: return capability "value" from get_capability() Jeff King
2021-09-14 15:31 ` [PATCH 3/9] serve: add "receive" method for v2 capabilities table Jeff King
2021-09-14 15:31 ` [PATCH 4/9] serve: provide "receive" function for object-format capability Jeff King
2021-09-14 18:59   ` Martin Ågren
2021-09-14 15:33 ` [PATCH 5/9] serve: provide "receive" function for session-id capability Jeff King
2021-09-14 16:55   ` Taylor Blau
2021-09-14 17:06     ` Jeff King
2021-09-14 17:12       ` Taylor Blau
2021-09-14 19:02   ` Martin Ågren
2021-09-14 19:14     ` Jeff King
2021-09-14 15:33 ` [PATCH 6/9] serve: drop "keys" strvec Jeff King
2021-09-14 16:59   ` Taylor Blau
2021-09-14 17:16     ` Jeff King
2021-09-14 15:37 ` [PATCH 7/9] ls-refs: ignore very long ref-prefix counts Jeff King
2021-09-14 17:18   ` Taylor Blau
2021-09-14 17:27     ` Jeff King
2021-09-14 17:23   ` Jeff King
2021-09-14 19:06   ` Martin Ågren
2021-09-14 19:22     ` Jeff King
2021-09-14 22:09   ` Jeff King
2021-09-14 22:11     ` Taylor Blau
2021-09-14 22:15       ` Jeff King
2021-09-14 15:37 ` [PATCH 8/9] serve: reject bogus v2 "command=ls-refs=foo" Jeff King
2021-09-14 17:21   ` Taylor Blau
2021-09-14 15:37 ` [PATCH 9/9] serve: reject commands used as capabilities Jeff King
2021-09-14 17:30 ` Taylor Blau [this message]
2021-09-14 18:00 ` [PATCH 0/9] reducing memory allocations for v2 servers Junio C Hamano
2021-09-14 18:38   ` Jeff King
2021-09-14 23:51 ` [PATCH v2 0/11] limit " Jeff King
2021-09-14 23:51   ` [PATCH v2 01/11] serve: rename is_command() to parse_command() Jeff King
2021-09-14 23:51   ` [PATCH v2 02/11] serve: return capability "value" from get_capability() Jeff King
2021-09-14 23:51   ` [PATCH v2 03/11] serve: add "receive" method for v2 capabilities table Jeff King
2021-09-15  0:31     ` Ævar Arnfjörð Bjarmason
2021-09-15 16:35       ` Jeff King
2021-09-15 16:41     ` Junio C Hamano
2021-09-15 16:57       ` Jeff King
2021-09-14 23:51   ` [PATCH v2 04/11] serve: provide "receive" function for object-format capability Jeff King
2021-09-15 16:54     ` Junio C Hamano
2021-09-14 23:51   ` [PATCH v2 05/11] serve: provide "receive" function for session-id capability Jeff King
2021-09-15 16:56     ` Junio C Hamano
2021-09-14 23:51   ` [PATCH v2 06/11] serve: drop "keys" strvec Jeff King
2021-09-15 17:01     ` Junio C Hamano
2021-09-14 23:51   ` [PATCH v2 07/11] ls-refs: ignore very long ref-prefix counts Jeff King
2021-09-15  4:16     ` Taylor Blau
2021-09-15 16:39       ` Jeff King
2021-09-15  5:00     ` Eric Sunshine
2021-09-15 16:40       ` Jeff King
2021-09-14 23:52   ` [PATCH v2 08/11] docs/protocol-v2: clarify some ls-refs ref-prefix details Jeff King
2021-09-14 23:52   ` [PATCH v2 09/11] serve: reject bogus v2 "command=ls-refs=foo" Jeff King
2021-09-15  0:27     ` Ævar Arnfjörð Bjarmason
2021-09-15 16:28       ` Jeff King
2021-09-15  5:09     ` Eric Sunshine
2021-09-15 16:32       ` Jeff King
2021-09-15 17:33     ` Junio C Hamano
2021-09-15 17:39       ` Jeff King
2021-09-14 23:52   ` [PATCH v2 10/11] serve: reject commands used as capabilities Jeff King
2021-09-14 23:54   ` [PATCH v2 11/11] ls-refs: reject unknown arguments Jeff King
2021-09-15  0:09     ` Ævar Arnfjörð Bjarmason
2021-09-15 16:25       ` Jeff King
2021-09-15  4:17   ` [PATCH v2 0/11] limit memory allocations for v2 servers Taylor Blau
2021-09-15 18:33   ` Jeff King
2021-09-15 18:34     ` [PATCH v3 " Jeff King
2021-09-15 18:35       ` [PATCH v3 01/11] serve: rename is_command() to parse_command() Jeff King
2021-09-15 18:35       ` [PATCH v3 02/11] serve: return capability "value" from get_capability() Jeff King
2021-09-15 18:35       ` [PATCH v3 03/11] serve: add "receive" method for v2 capabilities table Jeff King
2021-09-15 18:35       ` [PATCH v3 04/11] serve: provide "receive" function for object-format capability Jeff King
2021-09-15 18:35       ` [PATCH v3 05/11] serve: provide "receive" function for session-id capability Jeff King
2021-09-15 18:35       ` [PATCH v3 06/11] serve: drop "keys" strvec Jeff King
2021-09-15 18:35       ` [PATCH v3 07/11] ls-refs: ignore very long ref-prefix counts Jeff King
2021-09-15 18:35       ` [PATCH v3 08/11] docs/protocol-v2: clarify some ls-refs ref-prefix details Jeff King
2021-09-15 18:36       ` [PATCH v3 09/11] serve: reject bogus v2 "command=ls-refs=foo" Jeff King
2021-09-15 18:36       ` [PATCH v3 10/11] serve: reject commands used as capabilities Jeff King
2021-09-15 18:36       ` [PATCH v3 11/11] ls-refs: reject unknown arguments Jeff King
2021-09-15  0:25 ` [PATCH 0/9] reducing memory allocations for v2 servers Ævar Arnfjörð Bjarmason
2021-09-15 16:41   ` Jeff King

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