Segfault when fetching from current git.git on GitHub

[Ralf Thielow]

Hi,

I've fetched from the current git.git on GitHub minutes ago and got a
segfault. I could reproduce it with the Git version of the current next branch
(1.8.5.392.gf545f4d) with the steps below. The segfault does not appear with
version 1.8.5.

Steps to reproduce:
git init tmp
cd tmp
git remote add origin https://github.com/git/git.git
git fetch -v

Full stacktrace: http://pastebin.com/zK8epKWj
ProcMaps and ProcStatus from Ubuntu's Apport: http://pastebin.com/ZpPk1WSA


Ralf
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Re: Segfault when fetching from current git.git on GitHub

[Jonathan Nieder]

Hi,

Ralf Thielow wrote:

 I've fetched from the current git.git on GitHub minutes ago and got a
 segfault. I could reproduce it with the Git version of the current next 
 branch
 (1.8.5.392.gf545f4d) with the steps below. The segfault does not appear with
 version 1.8.5.

Yep, I can reproduce this.

  (gdb) bt
  #0  next_quote_pos (s=0x0, maxlen=-1) at quote.c:168
  #1  0x004ca2bb in quote_c_style_counted (name=0x0, maxlen=-1, 
sb=0x7fffe290, fp=0x0, no_dq=0) at quote.c:215
  #2  0x004fd4c0 in set_helper_option (transport=optimized out, 
name=0x525f89 depth, value=0x0) at transport-helper.c:307
  #3  0x004fb57f in transport_set_option (transport=0x7d5740, 
name=optimized out, value=0x0) at transport.c:1004
  #4  0x0042de10 in backfill_tags (ref_map=0x806a50, 
transport=0x7d5740) at builtin/fetch.c:791

It's fallout from 0f284b11 (transport: catch non positive --depth
option value, 2013-11-26).
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