ports/115014: ports/gawk dumps a core on opening nonexistent file

[Kirill Nuzhdin]

>Number:         115014
>Category:       ports
>Synopsis:       ports/gawk dumps a core on opening nonexistent file
>Confidential:   no
>Severity:       serious
>Priority:       low
>Responsible:    freebsd-ports-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sun Jul 29 18:40:02 GMT 2007
>Closed-Date:
>Last-Modified:
>Originator:     Kirill Nuzhdin
>Release:        6.2-STABLE
>Organization:
>Environment:
FreeBSD jailm.local 6.2-STABLE FreeBSD 6.2-STABLE #0: Mon Jul  9 15:25:08 MSD 2007     root at pile.local:/usr/obj/usr/.amd_mount/src/sys/PILE  amd64
>Description:
Gawk (port lang/gawk, gawk-3.1.5_1) coredumps, if feeded with nonexistent file.

Also repeatable in this environment: FreeBSD gw.local 6.2-STABLE FreeBSD 6.2-STABLE #0: Sat Jun 16 13:24:55 MSD 2007     root at gw.local:/usr/obj/usr/src/sys/GW  i386

>From /var/log/messages:
Jul 29 21:36:39 <kern.info> gw kernel: pid 20315 (gawk), uid 0: exited on signal 6 (core dumped)

Nothing related to this problem in ports/UPDATING

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This GDB was configured as "i386-marcel-freebsd"...(no debugging symbols found)...
Core was generated by `gawk'.
Program terminated with signal 6, Aborted.
Reading symbols from /usr/local/lib/libintl.so.8...(no debugging symbols found)...done.
Loaded symbols for /usr/local/lib/libintl.so.8
Reading symbols from /usr/local/lib/libiconv.so.3...(no debugging symbols found)...done.
Loaded symbols for /usr/local/lib/libiconv.so.3
Reading symbols from /lib/libm.so.4...(no debugging symbols found)...done.
Loaded symbols for /lib/libm.so.4
Reading symbols from /lib/libc.so.6...(no debugging symbols found)...done.
Loaded symbols for /lib/libc.so.6
Reading symbols from /libexec/ld-elf.so.1...(no debugging symbols found)...done.
Loaded symbols for /libexec/ld-elf.so.1
#0  0x2829a237 in kill () from /lib/libc.so.6
(gdb) where
#0  0x2829a237 in kill () from /lib/libc.so.6
#1  0x2829a1d6 in raise () from /lib/libc.so.6
#2  0x28298c9b in abort () from /lib/libc.so.6
#3  0x2822a6f1 in _UTF8_init () from /lib/libc.so.6
#4  0xbfbfedf0 in ?? ()
#5  0x282a0697 in sys_nsig () from /lib/libc.so.6
#6  0x282a0597 in sys_nsig () from /lib/libc.so.6
#7  0x282a06dc in sys_nsig () from /lib/libc.so.6
#8  0x282ac840 in ?? () from /lib/libc.so.6
#9  0x282a06dc in sys_nsig () from /lib/libc.so.6
#10 0xbfbfe9e8 in ?? ()
#11 0x2822a733 in _UTF8_init () from /lib/libc.so.6
#12 0x00000000 in ?? ()
#13 0x09a6322b in ?? ()
#14 0x28091a38 in symlook_obj () from /libexec/ld-elf.so.1
Previous frame inner to this frame (corrupt stack?)
>How-To-Repeat:
- install lang/gawk
- run gawk '//' nonexistent_file

you'll get:

gawk in free(): error: junk pointer, too low to make sense
(core dumped)
>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted: