Hi,
While investigating the crashes I've been seeing with ClamAV 0.75 on FreeBSD I
have discovered a place where an assertion fails. The assertion that fails is
on line 331 of message.c:
assert(m->base64chars == 0);
The backtrace for the process in question was:
(gdb) c
Continuing.
[Switching to process 7243, thread 4]
Program received signal SIGABRT, Aborted.
0x28124ce4 in kill () from /usr/lib/libc_r.so.4
(gdb) bt
#0 0x28124ce4 in kill () from /usr/lib/libc_r.so.4
#1 0x2817334a in abort () from /usr/lib/libc_r.so.4
#2 0x2814ceab in __assert () from /usr/lib/libc_r.so.4
#3 0x28089457 in messageReset (m=0x97bd100) at message.c:331
#4 0x2808932f in messageDestroy (m=0x97bd100) at message.c:304
#5 0x280861b7 in cl_mbox (dir=0x808a2c0 "/var/tmp//clamav-d836f6595d1f0a01",
desc=22) at mbox.c:570
#6 0x2807df08 in cli_scanmail (desc=22, virname=0xbfadcaa4, scanned=0x0,
root=0x8084800, limits=0xbfbffa20, options=27, reclev=0xbfadaa48)
at scanners.c:950
#7 0x2807e25e in cli_magic_scandesc (desc=22, virname=0xbfadcaa4,
scanned=0x0, root=0x8084800, limits=0xbfbffa20, options=27,
reclev=0xbfadaa48) at scanners.c:1030
#8 0x2807e420 in cli_scanfile (
filename=0x808a280 "/var/tmp//clamav-662db5d6db3ab4b8/unknownOH36Ca",
virname=0xbfadcaa4, scanned=0x0, root=0x8084800, limits=0xbfbffa20,
options=27, reclev=0xbfadaa48) at scanners.c:1079
#9 0x2807d462 in cli_scandir (
dirname=0x808a240 "/var/tmp//clamav-662db5d6db3ab4b8", virname=0xbfadcaa4,
scanned=0x0, root=0x8084800, limits=0xbfbffa20, options=27,
reclev=0xbfadaa48) at scanners.c:741
#10 0x2807df34 in cli_scanmail (desc=20, virname=0xbfadcaa4, scanned=0x0,
root=0x8084800, limits=0xbfbffa20, options=27, reclev=0xbfadaa48)
at scanners.c:953
#11 0x2807e25e in cli_magic_scandesc (desc=20, virname=0xbfadcaa4,
scanned=0x0, root=0x8084800, limits=0xbfbffa20, options=27,
reclev=0xbfadaa48) at scanners.c:1030
#12 0x2807e420 in cli_scanfile (
filename=0x808a1c0 "/var/tmp//clamav-4166d32502bcf690/unknown4mAqAJ",
virname=0xbfadcaa4, scanned=0x0, root=0x8084800, limits=0xbfbffa20,
options=27, reclev=0xbfadaa48) at scanners.c:1079
#13 0x2807d462 in cli_scandir (
dirname=0x808a180 "/var/tmp//clamav-4166d32502bcf690", virname=0xbfadcaa4,
scanned=0x0, root=0x8084800, limits=0xbfbffa20, options=27,
reclev=0xbfadaa48) at scanners.c:741
#14 0x2807df34 in cli_scanmail (desc=16, virname=0xbfadcaa4, scanned=0x0,
root=0x8084800, limits=0xbfbffa20, options=27, reclev=0xbfadaa48)
at scanners.c:953
#15 0x2807e25e in cli_magic_scandesc (desc=16, virname=0xbfadcaa4,
scanned=0x0, root=0x8084800, limits=0xbfbffa20, options=27,
reclev=0xbfadaa48) at scanners.c:1030
#16 0x2807e420 in cli_scanfile (
filename=0x808a140 "/var/tmp//clamav-c037f384ba6813b5/unknowngsg9XC",
virname=0xbfadcaa4, scanned=0x0, root=0x8084800, limits=0xbfbffa20,
options=27, reclev=0xbfadaa48) at scanners.c:1079
#17 0x2807d462 in cli_scandir (
dirname=0x955ef40 "/var/tmp//clamav-c037f384ba6813b5", virname=0xbfadcaa4,
scanned=0x0, root=0x8084800, limits=0xbfbffa20, options=27,
reclev=0xbfadaa48) at scanners.c:741
#18 0x2807df34 in cli_scanmail (desc=19, virname=0xbfadcaa4, scanned=0x0,
root=0x8084800, limits=0xbfbffa20, options=27, reclev=0xbfadaa48)
at scanners.c:953
#19 0x2807e25e in cli_magic_scandesc (desc=19, virname=0xbfadcaa4,
scanned=0x0, root=0x8084800, limits=0xbfbffa20, options=27,
reclev=0xbfadaa48) at scanners.c:1030
#20 0x2807e420 in cli_scanfile (
filename=0x955ef00 "/var/tmp//clamav-0c7611aa08893677/unknownmIP9vj",
virname=0xbfadcaa4, scanned=0x0, root=0x8084800, limits=0xbfbffa20,
options=27, reclev=0xbfadaa48) at scanners.c:1079
#21 0x2807d462 in cli_scandir (
dirname=0x808a000 "/var/tmp//clamav-0c7611aa08893677", virname=0xbfadcaa4,
scanned=0x0, root=0x8084800, limits=0xbfbffa20, options=27,
reclev=0xbfadaa48) at scanners.c:741
#22 0x2807df34 in cli_scanmail (desc=10, virname=0xbfadcaa4, scanned=0x0,
root=0x8084800, limits=0xbfbffa20, options=27, reclev=0xbfadaa48)
at scanners.c:953
#23 0x2807e25e in cli_magic_scandesc (desc=10, virname=0xbfadcaa4,
scanned=0x0, root=0x8084800, limits=0xbfbffa20, options=27,
reclev=0xbfadaa48) at scanners.c:1030
#24 0x2807e3b2 in cl_scandesc (desc=10, virname=0xbfadcaa4, scanned=0x0,
root=0x8084800, limits=0xbfbffa20, options=27) at scanners.c:1067
#25 0x805050e in getopt ()
#26 0x804dfce in getopt ()
#27 0x804e854 in getopt ()
#28 0x804e64d in getopt ()
#29 0x280ff240 in _thread_start () from /usr/lib/libc_r.so.4
#30 0x0 in ?? ()
Scanning the file from 'clamscan' manually causes the assertion to fail
reproducibly:
su-2.05# clamscan --mbox /var/tmp//clamav-662db5d6db3ab4b8/unknownOH36Ca
assertion "m->base64chars == 0" failed: file "message.c", line 331
Abort trap (core dumped)
I've made the file available at http://www.olliecook.net/unknownOH36Ca if the
developers are interested.
Cheers,
Ollie
--
Oliver Cook Systems Administrator, Claranet UK
[EMAIL PROTECTED] +44 20 7903 3065
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