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[bug #19491] Segmentation fault: -m 1 -A 99 '^a .b$'
From: |
Stan Behrens |
Subject: |
[bug #19491] Segmentation fault: -m 1 -A 99 '^a .b$' |
Date: |
Mon, 02 Apr 2007 16:51:17 +0000 |
User-agent: |
Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.8.1.3) Gecko/20070322 Firefox/2.0.0.3 |
URL:
<http://savannah.gnu.org/bugs/?19491>
Summary: Segmentation fault: -m 1 -A 99 '^a .b$'
Project: grep
Submitted by: sbeh
Submitted on: Monday 04/02/2007 at 16:51
Category: None
Severity: 3 - Normal
Item Group: None
Status: None
Privacy: Public
Assigned to: None
Open/Closed: Open
Discussion Lock: Any
_______________________________________________________
Details:
Hi,
Here is a way to get grep into trouble:
> cat >test.txt
a .b
a .c
^D
> grep -m 1 -A 99 '^a .b$' test.txt
a .b
Segmentation fault (core dumped)
Backtrace is:
(gdb) bt
#0 0x0804de4d in dfaexec (d=0x8059a40, begin=0x8062005 "a .c\n",
size=4160348156, backref=0xbfbfe680) at dfa.c:2854
#1 0x08053a1e in EGexecute (buf=0x8062005 "a .c\n", size=4, match_size=0x1,
exact=0) at search.c:430
#2 0x0804f8f0 in prpending (lim=0x806200a "") at grep.c:672
#3 0x08050366 in grepfile (file=0xbfbfea71 "test.txt", stats=0x8059680)
at grep.c:887
#4 0x080514d7 in main (argc=7, argv=0xbfbfe944) at grep.c:1850
Bye.
_______________________________________________________
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<http://savannah.gnu.org/bugs/?19491>
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- [bug #19491] Segmentation fault: -m 1 -A 99 '^a .b$',
Stan Behrens <=