[clamav-users] ClamAV SegFault on Reload - 0.99.3-beta1

Michael D. clamav at cosis.dk
Sun Sep 24 12:10:38 UTC 2017 

Hi,

I twice tried to reach out to the ClamAV Developers regarding this 
error, but been ignored.

Anyone?

Best regards

    Michael


Latest segfaults since rebooting 8 days ago:

Sep 21 16:42:49 Boomer kernel: clamd[4208]: segfault at 7f27d5dd7780 ip 
00007f27c56650b2 sp 00007ffd818b8280 error 4 in 
libclamav.so.7.1.1[7f27c562b000+1cf000]
Sep 21 21:39:25 Boomer kernel: clamd[8589]: segfault at 14cf977 ip 
00007f64092b7086 sp 00007ffc215e33c0 error 4 in 
libclamav.so.7.1.1[7f640927d000+1cf000]
Sep 22 10:39:26 Boomer kernel: clamd[28493]: segfault at 15f56e6 ip 
00007fbcbed4c086 sp 00007ffd451b9ff0 error 4 in 
libclamav.so.7.1.1[7fbcbed12000+1cf000]
Sep 22 17:40:35 Boomer kernel: clamd[26125]: segfault at 2c561cd ip 
00007fb8586691c5 sp 00007fffee7a7cd8 error 4 in 
libclamav.so.7.1.1[7fb8585aa000+1cf000]
Sep 23 06:38:17 Boomer kernel: clamd[29676]: segfault at f2e99de ip 
00007f9f243090b2 sp 00007ffd90a09bf0 error 4 in 
libclamav.so.7.1.1[7f9f242cf000+1cf000]
Sep 23 18:38:53 Boomer kernel: clamd[20460]: segfault at 32de7d5 ip 
00007f3f518481c5 sp 00007ffda4178b98 error 4 in 
libclamav.so.7.1.1[7f3f51789000+1cf000]
Sep 23 23:42:25 Boomer kernel: clamd[9637]: segfault at 33ac956 ip 
00007fc4ddb881c5 sp 00007ffe1457f378 error 4 in 
libclamav.so.7.1.1[7fc4ddac9000+1cf000]
Sep 24 09:38:53 Boomer kernel: clamd[13548]: segfault at 6 ip 
00007f28bbbbc1c5 sp 00007fffb209c748 error 4 in 
libclamav.so.7.1.1[7f28bbafd000+1cf000]
Sep 24 11:44:37 Boomer kernel: clamd[17253]: segfault at 6 ip 
00007f3af21b41c5 sp 00007ffe2c059ad8 error 4 in 
libclamav.so.7.1.1[7f3af20f5000+1cf000]
Sep 24 13:42:53 Boomer kernel: clamd[22657]: segfault at 1c0d12b ip 
00007efbfdf2f1c5 sp 00007fff0b092628 error 4 in 
libclamav.so.7.1.1[7efbfde70000+1cf000]


On 09/22/2017 05:50 PM, Michael D. wrote:
> Hi,
>
> The Clamd process still SegFault on reload after upgrading to 
> 0.99.3-beta1.
>
> Sep 21 16:42:49 Boomer kernel: clamd[4208]: segfault at 7f27d5dd7780 
> ip 00007f27c56650b2 sp 00007ffd818b8280 error 4 in 
> libclamav.so.7.1.1[7f27c562b000+1cf000]
> Sep 21 21:39:25 Boomer kernel: clamd[8589]: segfault at 14cf977 ip 
> 00007f64092b7086 sp 00007ffc215e33c0 error 4 in 
> libclamav.so.7.1.1[7f640927d000+1cf000]
> Sep 22 10:39:26 Boomer kernel: clamd[28493]: segfault at 15f56e6 ip 
> 00007fbcbed4c086 sp 00007ffd451b9ff0 error 4 in 
> libclamav.so.7.1.1[7fbcbed12000+1cf000]
>
> Anything I can do to help narrowing down on the fault?
>
> Best regards
>  Michael
>
>
> On 07/03/2017 12:50 PM, Michael D. wrote:
>> Hi,
>>
>> I've been running the Development Version of ClamAV for a while, and 
>> the only problem I've encountered is that sometimes when it's 
>> instructed to reload the databases (clamscan --reload) it SegFaults:
>>
>> Jun 18 15:25:04 Boomer kernel: clamd[3414]: segfault at 1de2 ip 
>> 00007f618669d345 sp 00007ffe57c51d28 error 4 in 
>> libclamav.so.7.1.1[7f61865e0000+1b7000]
>> Jun 19 01:44:17 Boomer kernel: clamd[3423]: segfault at 15f0d1 ip 
>> 00007f30e1010345 sp 00007ffdb449ccb8 error 4 in 
>> libclamav.so.7.1.1[7f30e0f53000+1b7000]
>> Jun 30 22:41:08 Boomer kernel: clamd[3723]: segfault at 748334 ip 
>> 00007f16a9c04066 sp 00007ffc68399d80 error 4 in 
>> libclamav.so.7.1.1[7f16a9bca000+1cf000]
>>
>> To get more information I installed gdb, and ran it like this:
>>
>> root at Boomer [ ~ ]# gdb /usr/sbin/clamd
>> gdb) run --debug -c /etc/clamav/clamd.conf
>> Starting program: /usr/sbin/clamd --debug -c /etc/clamav/clamd.conf
>> warning: Unable to find libthread_db matching inferior's thread 
>> library, thread debugging will not be available.
>> LibClamAV debug: Initialized devel-clamav-0.99-beta1-683-g5a0b148b4 
>> engine
>> LibClamAV debug: Initializing phishcheck module
>> <snip>
>>
>>
>> After a while I got this: (Along with a Core Dump)
>>
>> $Received POLLIN|POLLHUP on fd 7
>> $fds_poll_recv: timeout after 5 seconds
>> $Received POLLIN|POLLHUP on fd 11
>> $got command RELOAD (7, 2), argument:
>> $Receive thread: closing conn (FD 11), group finished
>> $Consumed entire command
>>
>> Thread 1 "clamd" received signal SIGSEGV, Segmentation fault.
>> mpool_free (mp=0x7ffff7fa6000, ptr=0x100000000) at mpool.c:698
>> 698      f = allocbase_fromfrag(f);
>> (gdb)
>> (gdb)
>> (gdb)
>> (gdb) bt
>> #0  mpool_free (mp=0x7ffff7fa6000, ptr=0x100000000) at mpool.c:698
>> #1  0x00007ffff7a2c038 in hm_free (root=root at entry=0x7ffff5289168) at 
>> matcher-hash.c:315
>> #2  0x00007ffff7a3d242 in cl_engine_free 
>> (engine=engine at entry=0x6b9b40) at readdb.c:4989
>> #3  0x000000000040e65d in reload_db (ret=<synthetic pointer>, 
>> do_check=0, opts=0x62e010, dboptions=8202, engine=0x6b9b40) at 
>> server-th.c:197
>> #4  recvloop_th (socketds=0x6bbdc0, nsockets=2, engine=0x6b9b40, 
>> dboptions=dboptions at entry=8202, opts=0x62e010) at server-th.c:1502
>> #5  0x0000000000405aaa in main (argc=<optimized out>, argv=<optimized 
>> out>) at clamd.c:800
>> (gdb)
>>
>> Can you use this information for anything?
>>
>> Any other commands I could run to gather more info?
>>
>> Best Regards
>>
>>  Michael
>>
>> System Info:
>>
>> Dist: LFS-8.0 64-Bit
>> Kernel: 4.11.7
>> GCC-6.3.0
>> ClamAV devel-clamav-0.99-beta1-683-g5a0b148b4/23529
>>
>> root at Boomer [ ~ ]# ldd /usr/sbin/clamd
>>     linux-vdso.so.1 (0x00007fff6d116000)
>>     libclamav.so.7 => /usr/lib/libclamav.so.7 (0x00007f5ed4f1c000)
>>     libxml2.so.2 => /usr/lib/libxml2.so.2 (0x00007f5ed4bb7000)
>>     liblzma.so.5 => /lib/liblzma.so.5 (0x00007f5ed4991000)
>>     libbz2.so.1.0 => /lib/libbz2.so.1.0 (0x00007f5ed4781000)
>>     libltdl.so.7 => /usr/lib/libltdl.so.7 (0x00007f5ed4577000)
>>     libdl.so.2 => /lib/libdl.so.2 (0x00007f5ed4373000)
>>     libssl.so.1.0.0 => /usr/lib/libssl.so.1.0.0 (0x00007f5ed4100000)
>>     libcrypto.so.1.0.0 => /usr/lib/libcrypto.so.1.0.0 
>> (0x00007f5ed3cab000)
>>     libz.so.1 => /lib/libz.so.1 (0x00007f5ed3a8f000)
>>     libpcre2-8.so.0 => /usr/lib/libpcre2-8.so.0 (0x00007f5ed3843000)
>>     libm.so.6 => /lib/libm.so.6 (0x00007f5ed3530000)
>>     libpthread.so.0 => /lib/libpthread.so.0 (0x00007f5ed3312000)
>>     libc.so.6 => /lib/libc.so.6 (0x00007f5ed2f6e000)
>>     /lib64/ld-linux-x86-64.so.2 (0x00007f5ed5304000)
>> root at Boomer [ ~ ]#
>>
>>
>> _______________________________________________
>> http://lurker.clamav.net/list/clamav-devel.html
>> Please submit your patches to our Bugzilla: http://bugs.clamav.net
>>
>> http://www.clamav.net/contact.html#ml
>
> _______________________________________________
> http://lurker.clamav.net/list/clamav-devel.html
> Please submit your patches to our Bugzilla: http://bugs.clamav.net
>
> http://www.clamav.net/contact.html#ml

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