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bug#16586: grep: infinite loop in grep -P on some files with invalid UTF
From: |
Santiago |
Subject: |
bug#16586: grep: infinite loop in grep -P on some files with invalid UTF-8 sequences |
Date: |
Wed, 29 Jan 2014 10:43:46 +0100 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
Package: grep
Version: 2.16
Severity: important
Hi there,
I forward this bug from debian's BTS. Last changes in -P brought another
problem. I've confirmed this behavior on last debian package:
----- Forwarded message from Vincent Lefevre <address@hidden> -----
[snip]
grep -P loops on some files with invalid UTF-8 sequences, e.g.
$ /usr/bin/printf "\xe9\x65\n\xab\n" | grep -P '.e|.?z' | head
�e
�e
�e
�e
�e
�e
�e
�e
�e
�e
(the infinite loop is interrupted here by a broken pipe due to
the "head").
It seems that the fix of
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=730472
didn't solve all the problems.
-- System Information:
Debian Release: jessie/sid
APT prefers unstable
APT policy: (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1,
'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 3.12-1-amd64 (SMP w/2 CPU cores)
Locale: LANG=POSIX, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages grep depends on:
ii dpkg 1.17.6
ii install-info 5.2.0.dfsg.1-2
ii libc6 2.17-97
ii libpcre3 1:8.31-2
grep recommends no packages.
grep suggests no packages.
-- no debconf information
----- End forwarded message -----
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Santiago <=