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mapfile segfaults when unsetting array in callback


From: Geir Hauge
Subject: mapfile segfaults when unsetting array in callback
Date: Wed, 25 Mar 2015 21:49:26 +0100
User-agent: Mutt/1.5.23 (2014-03-12)

Configuration Information [Automatically generated, do not change]:
Machine: x86_64
OS: linux-gnu
Compiler: gcc
Compilation CFLAGS:  -DPROGRAM='bash' -DCONF_HOSTTYPE='x86_64' 
-DCONF_OSTYPE='linux-gnu' -DCONF_MACHTYPE='x86_64-unknown-linux-gnu' 
-DCONF_VENDOR='unknown' -DLOCALEDIR='/usr/local/share/locale' -DPACKAGE='bash' 
-DSHELL -DHAVE_CONFIG_H   -I.  -I. -I./include -I./lib   -g -O2
uname output: Linux shbot 3.13.0-44-generic #73-Ubuntu SMP Tue Dec 16 00:22:43 
UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
Machine Type: x86_64-unknown-linux-gnu

Bash Version: 4.3
Patch Level: 33
Release Status: release

Description:
    When using mapfile's callback feature, and the callback unsets the
    array mapfile is appending to, it segfaults.

Repeat-By:
    callback() { unset MAPFILE; }
    (mapfile -c 1 -C callback <<< x)

-- 
Geir Hauge



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