[squid-users] negotiate_wrapper_auth double free or corruption
spokke
spokke at virtualbrain.info
Wed Apr 10 15:54:45 UTC 2019
Ciao,
we have a working squid 4 + AD SSO, system is a centos 7 virtual server,
squid it's installed from unofficial (but supported) repository
http://www1.ngtech.co.il...
This are the lines of the auth wrapper configuration
auth_param negotiate program /usr/lib64/squid/negotiate_wrapper_auth --ntlm
/usr/bin/ntlm_auth -d --diagnostics --helper-protocol=squid-2.5-ntlmssp
--domain=XXXXXXXXXX --kerberos /usr/lib64/squid/negotiate_kerberos_auth -d
-k /etc/squid/PROXY.keytab -s GSS_C_NO_NAME
auth_param negotiate children 80 startup=40 idle=10
auth_param negotiate keep_alive off
all seems to work fine except of sometime on the cache log appear a really
ugly crash message:
** Error in `(negotiate_wrapper_auth)': double free or corruption (!prev):
0x00000000021c8980 ***
======= Backtrace: =========
/lib64/libc.so.6(+0x81489)[0x7fec93d8e489]
(negotiate_wrapper_auth)[0x401bb1]
(negotiate_wrapper_auth)[0x4016a6]
/lib64/libc.so.6(__libc_start_main+0xf5)[0x7fec93d2f3d5]
(negotiate_wrapper_auth)[0x40170b]
======= Memory map: ========
00400000-00404000 r-xp 00000000 fd:00 688457
/usr/lib64/squid/negotiate_wrapper_a
uth
00603000-00604000 r--p 00003000 fd:00 688457
/usr/lib64/squid/negotiate_wrapper_a
uth
00604000-00605000 rw-p 00004000 fd:00 688457
/usr/lib64/squid/negotiate_wrapper_a
uth
021c8000-021e9000 rw-p 00000000 00:00 0
[heap]
7fec8c000000-7fec8c021000 rw-p 00000000 00:00 0
7fec8c021000-7fec90000000 ---p 00000000 00:00 0
7fec934df000-7fec934f6000 r-xp 00000000 fd:00 8151
/usr/lib64/libpthread-2.17.so
7fec934f6000-7fec936f5000 ---p 00017000 fd:00 8151
/usr/lib64/libpthread-2.17.so
7fec936f5000-7fec936f6000 r--p 00016000 fd:00 8151
/usr/lib64/libpthread-2.17.so
7fec936f6000-7fec936f7000 rw-p 00017000 fd:00 8151
/usr/lib64/libpthread-2.17.so
7fec936f7000-7fec936fb000 rw-p 00000000 00:00 0
7fec936fb000-7fec936ff000 r-xp 00000000 fd:00 48464
/usr/lib64/libmnl.so.0.1.0
7fec936ff000-7fec938ff000 ---p 00004000 fd:00 48464
/usr/lib64/libmnl.so.0.1.0
7fec938ff000-7fec93900000 r--p 00004000 fd:00 48464
/usr/lib64/libmnl.so.0.1.0
7fec93900000-7fec93901000 rw-p 00005000 fd:00 48464
/usr/lib64/libmnl.so.0.1.0
7fec93901000-7fec93907000 r-xp 00000000 fd:00 48682
/usr/lib64/libnfnetlink.so.0.2.0
7fec93907000-7fec93b06000 ---p 00006000 fd:00 48682
/usr/lib64/libnfnetlink.so.0.2.0
7fec93b06000-7fec93b07000 r--p 00005000 fd:00 48682
/usr/lib64/libnfnetlink.so.0.2.0
7fec93b07000-7fec93b08000 rw-p 00006000 fd:00 48682
/usr/lib64/libnfnetlink.so.0.2.0
7fec93b08000-7fec93b0c000 r-xp 00000000 fd:00 17626
/usr/lib64/libattr.so.1.1.0
7fec93b0c000-7fec93d0b000 ---p 00004000 fd:00 17626
/usr/lib64/libattr.so.1.1.0
7fec93d0b000-7fec93d0c000 r--p 00003000 fd:00 17626
/usr/lib64/libattr.so.1.1.0
7fec93d0c000-7fec93d0d000 rw-p 00004000 fd:00 17626
/usr/lib64/libattr.so.1.1.0
7fec93d0d000-7fec93ecf000 r-xp 00000000 fd:00 8144
/usr/lib64/libc-2.17.so
7fec93ecf000-7fec940cf000 ---p 001c2000 fd:00 8144
/usr/lib64/libc-2.17.so
7fec940cf000-7fec940d3000 r--p 001c2000 fd:00 8144
/usr/lib64/libc-2.17.so
7fec940d3000-7fec940d5000 rw-p 001c6000 fd:00 8144
/usr/lib64/libc-2.17.so
7fec940d5000-7fec940da000 rw-p 00000000 00:00 0
7fec940da000-7fec940ef000 r-xp 00000000 fd:00 635666
/usr/lib64/libgcc_s-4.8.5-20150702.s
o.1
7fec940ef000-7fec942ee000 ---p 00015000 fd:00 635666
/usr/lib64/libgcc_s-4.8.5-20150702.s
o.1
7fec942ee000-7fec942ef000 r--p 00014000 fd:00 635666
/usr/lib64/libgcc_s-4.8.5-20150702.s
o.1
7fec942ef000-7fec942f0000 rw-p 00015000 fd:00 635666
/usr/lib64/libgcc_s-4.8.5-20150702.s
o.1
7fec942f0000-7fec943f1000 r-xp 00000000 fd:00 743856
/usr/lib64/libm-2.17.so
7fec943f1000-7fec945f0000 ---p 00101000 fd:00 743856
/usr/lib64/libm-2.17.so
7fec945f0000-7fec945f1000 r--p 00100000 fd:00 743856
/usr/lib64/libm-2.17.so
7fec945f1000-7fec945f2000 rw-p 00101000 fd:00 743856
/usr/lib64/libm-2.17.so
7fec945f2000-7fec946db000 r-xp 00000000 fd:00 191114
/usr/lib64/libstdc++.so.6.0.19
7fec946db000-7fec948da000 ---p 000e9000 fd:00 191114
/usr/lib64/libstdc++.so.6.0.19
7fec948da000-7fec948e2000 r--p 000e8000 fd:00 191114
/usr/lib64/libstdc++.so.6.0.19
7fec948e2000-7fec948e4000 rw-p 000f0000 fd:00 191114
/usr/lib64/libstdc++.so.6.0.19
7fec948e4000-7fec948f9000 rw-p 00000000 00:00 0
7fec948f9000-7fec94900000 r-xp 00000000 fd:00 8158
/usr/lib64/librt-2.17.so
7fec94900000-7fec94aff000 ---p 00007000 fd:00 8158
/usr/lib64/librt-2.17.so
7fec94aff000-7fec94b00000 r--p 00006000 fd:00 8158
/usr/lib64/librt-2.17.so
7fec94b00000-7fec94b01000 rw-p 00007000 fd:00 8158
/usr/lib64/librt-2.17.so
7fec94b01000-7fec94b1d000 r-xp 00000000 fd:00 49012
/usr/lib64/libnetfilter_conntrack.so
.3.6.0
7fec94b1d000-7fec94d1c000 ---p 0001c000 fd:00 49012
/usr/lib64/libnetfilter_conntrack.so
.3.6.0
7fec94d1c000-7fec94d1e000 r--p 0001b000 fd:00 49012
/usr/lib64/libnetfilter_conntrack.so
.3.6.0
7fec94d1e000-7fec94d1f000 rw-p 0001d000 fd:00 49012
/usr/lib64/libnetfilter_conntrack.so
.3.6.0
7fec94d1f000-7fec94d23000 r-xp 00000000 fd:00 17631
/usr/lib64/libcap.so.2.22
7fec94d23000-7fec94f22000 ---p 00004000 fd:00 17631
/usr/lib64/libcap.so.2.22
7fec94f22000-7fec94f23000 r--p 00003000 fd:00 17631
/usr/lib64/libcap.so.2.22
7fec94f23000-7fec94f24000 rw-p 00004000 fd:00 17631
/usr/lib64/libcap.so.2.22
7fec94f24000-7fec94f3a000 r-xp 00000000 fd:00 8155
/usr/lib64/libresolv-2.17.so
7fec94f3a000-7fec95139000 ---p 00016000 fd:00 8155
/usr/lib64/libresolv-2.17.so
7fec95139000-7fec9513a000 r--p 00015000 fd:00 8155
/usr/lib64/libresolv-2.17.so
7fec9513a000-7fec9513b000 rw-p 00016000 fd:00 8155
/usr/lib64/libresolv-2.17.so
7fec9513b000-7fec9513d000 rw-p 00000000 00:00 0
7fec9513d000-7fec95153000 r-xp 00000000 fd:00 743858
/usr/lib64/libnsl-2.17.so
7fec95153000-7fec95353000 ---p 00016000 fd:00 743858
/usr/lib64/libnsl-2.17.so
7fec95353000-7fec95354000 r--p 00016000 fd:00 743858
/usr/lib64/libnsl-2.17.so
7fec95354000-7fec95355000 rw-p 00017000 fd:00 743858
/usr/lib64/libnsl-2.17.so
7fec95355000-7fec95357000 rw-p 00000000 00:00 0
7fec95357000-7fec95359000 r-xp 00000000 fd:00 743854
/usr/lib64/libdl-2.17.so
7fec95359000-7fec95559000 ---p 00002000 fd:00 743854
/usr/lib64/libdl-2.17.so
7fec95559000-7fec9555a000 r--p 00002000 fd:00 743854
/usr/lib64/libdl-2.17.so
7fec9555a000-7fec9555b000 rw-p 00003000 fd:00 743854
/usr/lib64/libdl-2.17.so
7fec9555b000-7fec9557d000 r-xp 00000000 fd:00 7853
/usr/lib64/ld-2.17.so
7fec9576a000-7fec95773000 rw-p 00000000 00:00 0
7fec9577a000-7fec9577c000 rw-p 00000000 00:00 0
7fec9577c000-7fec9577d000 r--p 00021000 fd:00 7853
/usr/lib64/ld-2.17.so
7fec9577d000-7fec9577e000 rw-p 00022000 fd:00 7853
/usr/lib64/ld-2.17.so
7fec9577e000-7fec9577f000 rw-p 00000000 00:00 0
7ffe2e6d9000-7ffe2e70e000 rw-p 00000000 00:00 0
[stack]
7ffe2e7b5000-7ffe2e7b7000 r-xp 00000000 00:00 0
[vdso]
ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0
[vsyscall]
2019/04/10 08:36:08 kid1| WARNING: negotiateauthenticator #Hlpr488 exited
2019/04/10 08:36:08 kid1| Too few negotiateauthenticator processes are
running (need 10/60)
2019/04/10 08:36:08 kid1| Starting new helpers
2019/04/10 08:36:08 kid1| helperOpenServers: Starting 10/60
'negotiate_wrapper_auth' processes
2019/04/10 08:36:09 kid1| ERROR: Negotiate Authentication Helper '0/0'
crashed!.
2019/04/10 08:36:09 kid1| ERROR: Negotiate Authentication validating user.
Result: {result=Unknown}
*** Error in `(negotiate_wrapper_auth)': double free or corruption (!prev):
0x0000000002421980 ***
*** Error in `(negotiate_wrapper_auth)': double free or corruption (!prev):
0x00000000013a8980 ***
.....
seems that the wrapper crash but i dont undestand why...i've tried to reduce
or increase the number of childrens/startup/idle processes but the errors
always appear....someone can help me to undestand this issue??
thanks
Ale
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