Package: autoconf
Version: 2.69-10
Severity: normal
Dear Maintainer,
the mmap() detection code in /usr/share/autoconf/autoconf/functions.m4 doesn't
free() the allocated memory. Consequently a ./configure run fails when leak
or address sanitizers are enabled.
>From config.log (the relevant compiler flag is -fsanitize=address):
##############
configure:49549: checking for working mmap
configure:49696: clang-5.0 -o conftest -I/usr/local/include
-I/usr/include/p11-kit-1 -DNDEBUG -O1 -fno-omit-frame-pointer
-gline-tables-only -DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
-fsanitize=address -fsanitize-address-use-after-scope
-fsanitize-coverage=trace-pc-guard,trace-cmp conftest.c -lunistring -lidn2
-L/usr/local/lib -lbrotlidec -llzma -lz -lbz2 -lnghttp2 -lpsl -lgnutls >&5
configure:49696: $? = 0
configure:49696: ./conftest
=================================================================
==23695==ERROR: LeakSanitizer: detected memory leaks
Direct leak of 4096 byte(s) in 1 object(s) allocated from:
#0 0x4d5498 in malloc (/usr/oms/src/wget2/conftest+0x4d5498)
#1 0x50b85c in main /usr/oms/src/wget2/conftest.c:829:20
#2 0x7fe0be4ac2b0 in __libc_start_main
(/lib/x86_64-linux-gnu/libc.so.6+0x202b0)
SUMMARY: AddressSanitizer: 4096 byte(s) leaked in 1 allocation(s).
configure:49696: $? = 1
configure: program exited with status 1
#############
Regards, Tim
-- System Information:
Debian Release: buster/sid
APT prefers unstable
APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 4.9.0-3-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) (ignored: LC_ALL
set to en_US.UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8) (ignored: LC_ALL set
to en_US.UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages autoconf depends on:
ii debianutils 4.8.1.1
ii m4 1.4.18-1
ii perl 5.24.1-4
Versions of packages autoconf recommends:
ii automake [automaken] 1:1.15.1-1
ii automake1.10 [automaken] 1:1.10.3-3.1
ii automake1.6 [automaken] 1.6.3-12
ii automake1.9 [automaken] 1.9.6+nogfdl-4
Versions of packages autoconf suggests:
ii autoconf-archive 20160916-1
pn autoconf-doc <none>
ii gettext 0.19.8.1-2
ii gnu-standards 2010.03.11-1
ii libtool 2.4.6-2
-- no debconf information
