[Varnish] #935: "varnishadm: free(): invalid pointer" when varnishadm does not have read access to secret

[Varnish]

#935: "varnishadm: free(): invalid pointer" when varnishadm does not have read
access to secret
-----------------------------+----------------------------------------------
 Reporter:  scoof            |        Type:  defect    
   Status:  new              |    Priority:  lowest    
Milestone:  Varnish 3.0 dev  |   Component:  varnishadm
  Version:  trunk            |    Severity:  trivial   
 Keywords:                   |  
-----------------------------+----------------------------------------------
 This occurs only when I run as a user without rights for the secret file:


 {{{
 Cannot open "/etc/varnish/secret": Permission denied
 *** glibc detected *** varnishadm: free(): invalid pointer: 0x089330df ***
 ======= Backtrace: =========
 /lib/i686/cmov/libc.so.6(+0x6b281)[0xb75c8281]
 /lib/i686/cmov/libc.so.6(+0x6cad8)[0xb75c9ad8]
 /lib/i686/cmov/libc.so.6(cfree+0x6d)[0xb75ccbbd]
 varnishadm[0x80497bb]
 varnishadm[0x8049bc4]
 /lib/i686/cmov/libc.so.6(__libc_start_main+0xe6)[0xb7573c76]
 varnishadm[0x8049111]
 ======= Memory map: ========
 08048000-0804c000 r-xp 00000000 08:01 1022240    /usr/bin/varnishadm
 0804c000-0804d000 rw-p 00003000 08:01 1022240    /usr/bin/varnishadm
 08933000-08954000 rw-p 00000000 00:00 0          [heap]
 b22e2000-b22ff000 r-xp 00000000 08:01 4416206    /lib/libgcc_s.so.1
 b22ff000-b2300000 rw-p 0001c000 08:01 4416206    /lib/libgcc_s.so.1
 b2300000-b2321000 rw-p 00000000 00:00 0
 b2321000-b2400000 ---p 00000000 00:00 0
 b2410000-b7510000 r--s 00000000 08:01 2861966
 /var/lib/varnish/trillian/_.vsm
 b7510000-b7512000 rw-p 00000000 00:00 0
 b7512000-b7514000 r-xp 00000000 08:01 4415792
 /lib/i686/cmov/libdl-2.11.2.so
 b7514000-b7515000 r--p 00001000 08:01 4415792
 /lib/i686/cmov/libdl-2.11.2.so
 b7515000-b7516000 rw-p 00002000 08:01 4415792
 /lib/i686/cmov/libdl-2.11.2.so
 b7516000-b751f000 r-xp 00000000 08:01 4415120    /lib/libbsd.so.0.2.0
 b751f000-b7520000 rw-p 00008000 08:01 4415120    /lib/libbsd.so.0.2.0
 b7520000-b755c000 r-xp 00000000 08:01 4415659    /lib/libpcre.so.3.12.1
 b755c000-b755d000 rw-p 0003b000 08:01 4415659    /lib/libpcre.so.3.12.1
 b755d000-b769d000 r-xp 00000000 08:01 4416106
 /lib/i686/cmov/libc-2.11.2.so
 b769d000-b769f000 r--p 0013f000 08:01 4416106
 /lib/i686/cmov/libc-2.11.2.so
 b769f000-b76a0000 rw-p 00141000 08:01 4416106
 /lib/i686/cmov/libc-2.11.2.so
 b76a0000-b76a4000 rw-p 00000000 00:00 0
 b76a4000-b76b9000 r-xp 00000000 08:01 4415779
 /lib/i686/cmov/libpthread-2.11.2.so
 b76b9000-b76ba000 r--p 00014000 08:01 4415779
 /lib/i686/cmov/libpthread-2.11.2.so
 b76ba000-b76bb000 rw-p 00015000 08:01 4415779
 /lib/i686/cmov/libpthread-2.11.2.so
 b76bb000-b76bd000 rw-p 00000000 00:00 0
 b76bd000-b76e1000 r-xp 00000000 08:01 4415532
 /lib/i686/cmov/libm-2.11.2.so
 b76e1000-b76e2000 r--p 00023000 08:01 4415532
 /lib/i686/cmov/libm-2.11.2.so
 b76e2000-b76e3000 rw-p 00024000 08:01 4415532
 /lib/i686/cmov/libm-2.11.2.so
 b76e3000-b771a000 r-xp 00000000 08:01 4415247    /lib/libncurses.so.5.7
 b771a000-b771d000 rw-p 00036000 08:01 4415247    /lib/libncurses.so.5.7
 b771d000-b7738000 r-xp 00000000 08:01 1016461    /usr/lib/libedit.so.2.11
 b7738000-b773a000 rw-p 0001b000 08:01 1016461    /usr/lib/libedit.so.2.11
 b773a000-b773b000 rw-p 00000000 00:00 0
 b773b000-b774e000 r-xp 00000000 08:01 4416100
 /lib/i686/cmov/libnsl-2.11.2.so
 b774e000-b774f000 r--p 00012000 08:01 4416100
 /lib/i686/cmov/libnsl-2.11.2.so
 b774f000-b7750000 rw-p 00013000 08:01 4416100
 /lib/i686/cmov/libnsl-2.11.2.so
 b7750000-b7753000 rw-p 00000000 00:00 0
 b7753000-b7754000 r-xp 00000000 08:01 3761035
 /usr/lib/varnish/libvarnishcompat.so
 b7754000-b7755000 rw-p 00000000 08:01 3761035
 /usr/lib/varnish/libvarnishcompat.so
 b7755000-b7765000 r-xp 00000000 08:01 1014340
 /usr/lib/libvarnishapi.so.1.0.0
 b7765000-b7766000 rw-p 00010000 08:01 1014340
 /usr/lib/libvarnishapi.so.1.0.0
 b7785000-b7787000 rw-p 00000000 00:00 0
 b7787000-b7788000 r-xp 00000000 00:00 0          [vdso]
 b7788000-b77a3000 r-xp 00000000 08:01 4416907    /lib/ld-2.11.2.so
 b77a3000-b77a4000 r--p 0001a000 08:01 4416907    /lib/ld-2.11.2.so
 b77a4000-b77a5000 rw-p 0001b000 08:01 4416907    /lib/ld-2.11.2.so
 bf9a7000-bf9c8000 rw-p 00000000 00:00 0          [stack]
 Aborted
 }}}

-- 
Ticket URL: <http://www.varnish-cache.org/trac/ticket/935>
Varnish <http://varnish-cache.org/>
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