Public bug reported:
The attached libcurl test program that should be compiled with
<<<<<<<<<<<
gcc -g test-curl.c -lcurl -lssh2 -lssl -lidn
>>>>>>>>>>>
Generates the following errors with valgrind on Ubuntu Gutsy on an x86:
{{{{{{{{{{{{{{
==28535== Memcheck, a memory error detector.
==28535== Copyright (C) 2002-2007, and GNU GPL'd, by Julian Seward et al.
==28535== Using LibVEX rev 1732, a library for dynamic binary translation.
==28535== Copyright (C) 2004-2007, and GNU GPL'd, by OpenWorks LLP.
==28535== Using valgrind-3.2.3-Debian, a dynamic binary instrumentation
framework.
==28535== Copyright (C) 2000-2007, and GNU GPL'd, by Julian Seward et al.
==28535== For more details, rerun with: -v
==28535==
==28535== Invalid read of size 4
==28535== at 0x4014C09: (within /lib/ld-2.6.1.so)
==28535== by 0x4005BE9: (within /lib/ld-2.6.1.so)
==28535== by 0x4007A07: (within /lib/ld-2.6.1.so)
==28535== by 0x4010F83: (within /lib/ld-2.6.1.so)
==28535== by 0x400D015: (within /lib/ld-2.6.1.so)
==28535== by 0x401099D: (within /lib/ld-2.6.1.so)
==28535== by 0x41D7061: (within /lib/tls/i686/cmov/libc-2.6.1.so)
==28535== by 0x400D015: (within /lib/ld-2.6.1.so)
==28535== by 0x41D7224: __libc_dlopen_mode (in
/lib/tls/i686/cmov/libc-2.6.1.so)
==28535== by 0x41B1756: __nss_lookup_function (in
/lib/tls/i686/cmov/libc-2.6.1.so)
==28535== by 0x41862CF: (within /lib/tls/i686/cmov/libc-2.6.1.so)
==28535== by 0x418761F: getaddrinfo (in /lib/tls/i686/cmov/libc-2.6.1.so)
==28535== Address 0x440DDCC is 36 bytes inside a block of size 37 alloc'd
==28535== at 0x4022765: malloc (vg_replace_malloc.c:149)
==28535== by 0x4007FA1: (within /lib/ld-2.6.1.so)
==28535== by 0x4010F83: (within /lib/ld-2.6.1.so)
==28535== by 0x400D015: (within /lib/ld-2.6.1.so)
==28535== by 0x401099D: (within /lib/ld-2.6.1.so)
==28535== by 0x41D7061: (within /lib/tls/i686/cmov/libc-2.6.1.so)
==28535== by 0x400D015: (within /lib/ld-2.6.1.so)
==28535== by 0x41D7224: __libc_dlopen_mode (in
/lib/tls/i686/cmov/libc-2.6.1.so)
==28535== by 0x41B1756: __nss_lookup_function (in
/lib/tls/i686/cmov/libc-2.6.1.so)
==28535== by 0x41862CF: (within /lib/tls/i686/cmov/libc-2.6.1.so)
==28535== by 0x418761F: getaddrinfo (in /lib/tls/i686/cmov/libc-2.6.1.so)
==28535== by 0x806D731: Curl_getaddrinfo (hostip6.c:292)
==28535==
==28535== Invalid read of size 4
==28535== at 0x4014C37: (within /lib/ld-2.6.1.so)
==28535== by 0x4005BE9: (within /lib/ld-2.6.1.so)
==28535== by 0x4007A07: (within /lib/ld-2.6.1.so)
==28535== by 0x4010F83: (within /lib/ld-2.6.1.so)
==28535== by 0x400D015: (within /lib/ld-2.6.1.so)
==28535== by 0x401099D: (within /lib/ld-2.6.1.so)
==28535== by 0x41D7061: (within /lib/tls/i686/cmov/libc-2.6.1.so)
==28535== by 0x400D015: (within /lib/ld-2.6.1.so)
==28535== by 0x41D7224: __libc_dlopen_mode (in
/lib/tls/i686/cmov/libc-2.6.1.so)
==28535== by 0x41B1756: __nss_lookup_function (in
/lib/tls/i686/cmov/libc-2.6.1.so)
==28535== by 0x41862CF: (within /lib/tls/i686/cmov/libc-2.6.1.so)
==28535== by 0x418761F: getaddrinfo (in /lib/tls/i686/cmov/libc-2.6.1.so)
==28535== Address 0x440E46C is 28 bytes inside a block of size 31 alloc'd
==28535== at 0x4022765: malloc (vg_replace_malloc.c:149)
==28535== by 0x4007FA1: (within /lib/ld-2.6.1.so)
==28535== by 0x4010F83: (within /lib/ld-2.6.1.so)
==28535== by 0x400D015: (within /lib/ld-2.6.1.so)
==28535== by 0x401099D: (within /lib/ld-2.6.1.so)
==28535== by 0x41D7061: (within /lib/tls/i686/cmov/libc-2.6.1.so)
==28535== by 0x400D015: (within /lib/ld-2.6.1.so)
==28535== by 0x41D7224: __libc_dlopen_mode (in
/lib/tls/i686/cmov/libc-2.6.1.so)
==28535== by 0x41B1756: __nss_lookup_function (in
/lib/tls/i686/cmov/libc-2.6.1.so)
==28535== by 0x41862CF: (within /lib/tls/i686/cmov/libc-2.6.1.so)
==28535== by 0x418761F: getaddrinfo (in /lib/tls/i686/cmov/libc-2.6.1.so)
==28535== by 0x806D731: Curl_getaddrinfo (hostip6.c:292)
==28535==
==28535== Invalid read of size 4
==28535== at 0x4014BF3: (within /lib/ld-2.6.1.so)
==28535== by 0x4005BE9: (within /lib/ld-2.6.1.so)
==28535== by 0x4007A07: (within /lib/ld-2.6.1.so)
==28535== by 0x4010F83: (within /lib/ld-2.6.1.so)
==28535== by 0x400D015: (within /lib/ld-2.6.1.so)
==28535== by 0x401099D: (within /lib/ld-2.6.1.so)
==28535== by 0x41D7061: (within /lib/tls/i686/cmov/libc-2.6.1.so)
==28535== by 0x400D015: (within /lib/ld-2.6.1.so)
==28535== by 0x41D7224: __libc_dlopen_mode (in
/lib/tls/i686/cmov/libc-2.6.1.so)
==28535== by 0x41B1756: __nss_lookup_function (in
/lib/tls/i686/cmov/libc-2.6.1.so)
==28535== by 0x41862CF: (within /lib/tls/i686/cmov/libc-2.6.1.so)
==28535== by 0x418761F: getaddrinfo (in /lib/tls/i686/cmov/libc-2.6.1.so)
==28535== Address 0x440E960 is 32 bytes inside a block of size 35 alloc'd
==28535== at 0x4022765: malloc (vg_replace_malloc.c:149)
==28535== by 0x4007FA1: (within /lib/ld-2.6.1.so)
==28535== by 0x4010F83: (within /lib/ld-2.6.1.so)
==28535== by 0x400D015: (within /lib/ld-2.6.1.so)
==28535== by 0x401099D: (within /lib/ld-2.6.1.so)
==28535== by 0x41D7061: (within /lib/tls/i686/cmov/libc-2.6.1.so)
==28535== by 0x400D015: (within /lib/ld-2.6.1.so)
==28535== by 0x41D7224: __libc_dlopen_mode (in
/lib/tls/i686/cmov/libc-2.6.1.so)
==28535== by 0x41B1756: __nss_lookup_function (in
/lib/tls/i686/cmov/libc-2.6.1.so)
==28535== by 0x41862CF: (within /lib/tls/i686/cmov/libc-2.6.1.so)
==28535== by 0x418761F: getaddrinfo (in /lib/tls/i686/cmov/libc-2.6.1.so)
==28535== by 0x806D731: Curl_getaddrinfo (hostip6.c:292)
==28535==
==28535== Invalid read of size 4
==28535== at 0x4014BF3: (within /lib/ld-2.6.1.so)
==28535== by 0x4005BE9: (within /lib/ld-2.6.1.so)
==28535== by 0x4007A07: (within /lib/ld-2.6.1.so)
==28535== by 0x400B806: (within /lib/ld-2.6.1.so)
==28535== by 0x400D015: (within /lib/ld-2.6.1.so)
==28535== by 0x400B9E6: (within /lib/ld-2.6.1.so)
==28535== by 0x4010FE3: (within /lib/ld-2.6.1.so)
==28535== by 0x400D015: (within /lib/ld-2.6.1.so)
==28535== by 0x401099D: (within /lib/ld-2.6.1.so)
==28535== by 0x41D7061: (within /lib/tls/i686/cmov/libc-2.6.1.so)
==28535== by 0x400D015: (within /lib/ld-2.6.1.so)
==28535== by 0x41D7224: __libc_dlopen_mode (in
/lib/tls/i686/cmov/libc-2.6.1.so)
==28535== Address 0x440ECA8 is 32 bytes inside a block of size 34 alloc'd
==28535== at 0x4022765: malloc (vg_replace_malloc.c:149)
==28535== by 0x4007FA1: (within /lib/ld-2.6.1.so)
==28535== by 0x400B806: (within /lib/ld-2.6.1.so)
==28535== by 0x400D015: (within /lib/ld-2.6.1.so)
==28535== by 0x400B9E6: (within /lib/ld-2.6.1.so)
==28535== by 0x4010FE3: (within /lib/ld-2.6.1.so)
==28535== by 0x400D015: (within /lib/ld-2.6.1.so)
==28535== by 0x401099D: (within /lib/ld-2.6.1.so)
==28535== by 0x41D7061: (within /lib/tls/i686/cmov/libc-2.6.1.so)
==28535== by 0x400D015: (within /lib/ld-2.6.1.so)
==28535== by 0x41D7224: __libc_dlopen_mode (in
/lib/tls/i686/cmov/libc-2.6.1.so)
==28535== by 0x41B1756: __nss_lookup_function (in
/lib/tls/i686/cmov/libc-2.6.1.so)
==28535==
==28535== ERROR SUMMARY: 4 errors from 4 contexts (suppressed: 45 from 1)
==28535== malloc/free: in use at exit: 29,260 bytes in 2,023 blocks.
==28535== malloc/free: 11,323 allocs, 9,300 frees, 723,237 bytes allocated.
==28535== For counts of detected errors, rerun with: -v
==28535== searching for pointers to 2,023 not-freed blocks.
==28535== checked 261,400 bytes.
==28535==
==28535== LEAK SUMMARY:
==28535== definitely lost: 0 bytes in 0 blocks.
==28535== possibly lost: 0 bytes in 0 blocks.
==28535== still reachable: 29,260 bytes in 2,023 blocks.
==28535== suppressed: 0 bytes in 0 blocks.
==28535== Rerun with --leak-check=full to see details of leaked memory.
}}}}}}}}}}}}}}
This seems like a bug in glibc.
Regards,
Shlomi Fish
** Affects: glibc (Ubuntu)
Importance: Undecided
Status: New
--
getaddrinfo() Generates several valgrind warnings in a libcurl test program on
Ubuntu Gutsy.
https://bugs.launchpad.net/bugs/213825
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