Package: libconfuse-dev Version: 2.7-4 Severity: normal Hi,
cfg_free() does not completely clean the memory allocated by cfg_parse(). Below is a test with one of the example programs provided with the package (the valgrind -v output is attached). Cheers, Matteo $ gcc -Wall -Wextra -g -lconfuse -o simple \ /usr/share/doc/libconfuse-dev/examples/simple.c $ cp /usr/share/doc/libconfuse-dev/examples/simple.conf . $ valgrind --leak-check=full --show-reachable=yes ./simple ==19011== Memcheck, a memory error detector ==19011== Copyright (C) 2002-2010, and GNU GPL'd, by Julian Seward et al. ==19011== Using Valgrind-3.6.1 and LibVEX; rerun with -h for copyright info ==19011== Command: ./simple ==19011== verbose: true server: gazonk username: joe debug: 17 delay: 1.356E-32 setting username to 'foo' username: foo ==19011== ==19011== HEAP SUMMARY: ==19011== in use at exit: 8 bytes in 1 blocks ==19011== total heap usage: 93 allocs, 92 frees, 27,591 bytes allocated ==19011== ==19011== 8 bytes in 1 blocks are still reachable in loss record 1 of 1 ==19011== at 0x4C2779D: malloc (in /usr/lib/valgrind/vgpreload_memcheck- amd64-linux.so) ==19011== by 0x4E3364F: ??? (in /usr/lib/x86_64-linux- gnu/libconfuse.so.0.0.0) ==19011== by 0x4E33768: cfg_yy_switch_to_buffer (in /usr/lib/x86_64-linux- gnu/libconfuse.so.0.0.0) ==19011== by 0x4E32861: cfg_parse_fp (in /usr/lib/x86_64-linux- gnu/libconfuse.so.0.0.0) ==19011== by 0x4E3292C: cfg_parse (in /usr/lib/x86_64-linux- gnu/libconfuse.so.0.0.0) ==19011== by 0x400A5C: main (simple.c:37) ==19011== ==19011== LEAK SUMMARY: ==19011== definitely lost: 0 bytes in 0 blocks ==19011== indirectly lost: 0 bytes in 0 blocks ==19011== possibly lost: 0 bytes in 0 blocks ==19011== still reachable: 8 bytes in 1 blocks ==19011== suppressed: 0 bytes in 0 blocks ==19011== ==19011== For counts of detected and suppressed errors, rerun with: -v ==19011== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 4 from 4) -- Ma clef GPG est disponible sur keyserver.veridis.com My GPG key is available on keyserver.veridis.com
==19021== Memcheck, a memory error detector ==19021== Copyright (C) 2002-2010, and GNU GPL'd, by Julian Seward et al. ==19021== Using Valgrind-3.6.1 and LibVEX; rerun with -h for copyright info ==19021== Command: ./simple ==19021== --19021-- Valgrind options: --19021-- --suppressions=/usr/lib/valgrind/debian-libc6-dbg.supp --19021-- --leak-check=full --19021-- --show-reachable=yes --19021-- -v --19021-- Contents of /proc/version: --19021-- Linux version 3.0.0-1-amd64 (Debian 3.0.0-2) ([email protected]) (gcc version 4.5.3 (Debian 4.5.3-5) ) #1 SMP Wed Aug 17 04:08:52 UTC 2011 --19021-- Arch and hwcaps: AMD64, amd64-sse3-cx16 --19021-- Page sizes: currently 4096, max supported 4096 --19021-- Valgrind library directory: /usr/lib/valgrind --19021-- Reading syms from /tmp/simple (0x400000) --19021-- Reading syms from /lib/x86_64-linux-gnu/ld-2.13.so (0x4000000) --19021-- Considering /lib/x86_64-linux-gnu/ld-2.13.so .. --19021-- .. CRC mismatch (computed 4c0b00f5 wanted e1cc78bb) --19021-- Considering /usr/lib/debug/lib/x86_64-linux-gnu/ld-2.13.so .. --19021-- .. CRC is valid --19021-- Reading syms from /usr/lib/valgrind/memcheck-amd64-linux (0x38000000) --19021-- object doesn't have a symbol table --19021-- object doesn't have a dynamic symbol table --19021-- Reading suppressions file: /usr/lib/valgrind/debian-libc6-dbg.supp --19021-- Reading suppressions file: /usr/lib/valgrind/default.supp --19021-- REDIR: 0x40165e0 (strlen) redirected to 0x3805f727 (???) --19021-- Reading syms from /usr/lib/valgrind/vgpreload_core-amd64-linux.so (0x4a22000) --19021-- object doesn't have a symbol table --19021-- Reading syms from /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so (0x4c23000) --19021-- object doesn't have a symbol table ==19021== WARNING: new redirection conflicts with existing -- ignoring it --19021-- new: 0x040165e0 (strlen ) R-> 0x04c280d0 strlen --19021-- REDIR: 0x4016450 (index) redirected to 0x4c27d30 (index) --19021-- REDIR: 0x40164d0 (strcmp) redirected to 0x4c28c90 (strcmp) --19021-- Reading syms from /usr/lib/x86_64-linux-gnu/libconfuse.so.0.0.0 (0x4e2d000) --19021-- object doesn't have a symbol table --19021-- Reading syms from /lib/x86_64-linux-gnu/libc-2.13.so (0x5039000) --19021-- Considering /lib/x86_64-linux-gnu/libc-2.13.so .. --19021-- .. CRC mismatch (computed 86840265 wanted 311d89e3) --19021-- Considering /usr/lib/debug/lib/x86_64-linux-gnu/libc-2.13.so .. --19021-- .. CRC is valid --19021-- REDIR: 0x50bb3e0 (strncasecmp) redirected to 0x4a22620 (_vgnU_ifunc_wrapper) --19021-- REDIR: 0x50b9120 (strcasecmp) redirected to 0x4a22620 (_vgnU_ifunc_wrapper) --19021-- REDIR: 0x50b7180 (__GI_strrchr) redirected to 0x4c27b50 (__GI_strrchr) --19021-- REDIR: 0x50b56a0 (__GI_strlen) redirected to 0x4c28090 (__GI_strlen) --19021-- REDIR: 0x50b03b0 (malloc) redirected to 0x4c27730 (malloc) --19021-- REDIR: 0x50af940 (calloc) redirected to 0x4c25dc0 (calloc) --19021-- REDIR: 0x50bdab0 (memcpy) redirected to 0x4a22620 (_vgnU_ifunc_wrapper) --19021-- REDIR: 0x515b2b0 (__memcpy_ssse3_back) redirected to 0x4c28d90 (memcpy) --19021-- REDIR: 0x50b3c60 (__GI_strcmp) redirected to 0x4c28c30 (__GI_strcmp) --19021-- REDIR: 0x50b58d0 (__GI_strncmp) redirected to 0x4c28590 (__GI_strncmp) --19021-- REDIR: 0x50b3ba0 (__GI_strchr) redirected to 0x4c27c30 (__GI_strchr) --19021-- REDIR: 0x50beed0 (strchrnul) redirected to 0x4c29dd0 (strchrnul) --19021-- REDIR: 0x50b02d0 (free) redirected to 0x4c26890 (free) --19021-- REDIR: 0x50b7880 (memchr) redirected to 0x4c28d50 (memchr) --19021-- REDIR: 0x50b1400 (realloc) redirected to 0x4c27800 (realloc) --19021-- REDIR: 0x51480d0 (__strcasecmp_sse42) redirected to 0x4c28610 (strcasecmp) --19021-- REDIR: 0x50b5780 (strnlen) redirected to 0x4c28010 (strnlen) --19021-- REDIR: 0x50b8fd0 (__GI_stpcpy) redirected to 0x4c299d0 (__GI_stpcpy) --19021-- REDIR: 0x50b50e0 (__GI_strcpy) redirected to 0x4c281c0 (__GI_strcpy) --19021-- REDIR: 0x50bee80 (__GI___rawmemchr) redirected to 0x4c29e20 (__GI___rawmemchr) --19021-- REDIR: 0x50b3c20 (strcmp) redirected to 0x4a22620 (_vgnU_ifunc_wrapper) --19021-- REDIR: 0x5145850 (__strcmp_sse42) redirected to 0x4c28bd0 (strcmp) verbose: true server: gazonk username: joe debug: 17 delay: 1.356E-32 setting username to 'foo' username: foo ==19021== ==19021== HEAP SUMMARY: ==19021== in use at exit: 8 bytes in 1 blocks ==19021== total heap usage: 93 allocs, 92 frees, 27,591 bytes allocated ==19021== ==19021== Searching for pointers to 1 not-freed blocks ==19021== Checked 77,168 bytes ==19021== ==19021== 8 bytes in 1 blocks are still reachable in loss record 1 of 1 ==19021== at 0x4C2779D: malloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) ==19021== by 0x4E3364F: ??? (in /usr/lib/x86_64-linux-gnu/libconfuse.so.0.0.0) ==19021== by 0x4E33768: cfg_yy_switch_to_buffer (in /usr/lib/x86_64-linux-gnu/libconfuse.so.0.0.0) ==19021== by 0x4E32861: cfg_parse_fp (in /usr/lib/x86_64-linux-gnu/libconfuse.so.0.0.0) ==19021== by 0x4E3292C: cfg_parse (in /usr/lib/x86_64-linux-gnu/libconfuse.so.0.0.0) ==19021== by 0x400A5C: main (simple.c:37) ==19021== ==19021== LEAK SUMMARY: ==19021== definitely lost: 0 bytes in 0 blocks ==19021== indirectly lost: 0 bytes in 0 blocks ==19021== possibly lost: 0 bytes in 0 blocks ==19021== still reachable: 8 bytes in 1 blocks ==19021== suppressed: 0 bytes in 0 blocks ==19021== ==19021== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 4 from 4) --19021-- --19021-- used_suppression: 4 dl-hack3-cond-1 ==19021== ==19021== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 4 from 4)
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