Bug#892096: gcc-snapshot: AddressSanitizer /usr/lib/gcc-snapshot/lib32/libasan.so.5 is broken: SEGV
Package: gcc-snapshot
Version: 20180216-1
Severity: important
On a program that does nothing, the AddressSanitizer segfaults with
the 32-bit ABI. This is a regression.
I have the following gcc-snapshot script:
#!/bin/sh
LD_LIBRARY_PATH=/usr/lib/gcc-snapshot/lib:$LD_LIBRARY_PATH
PATH=/usr/lib/gcc-snapshot/bin:$PATH
rpath=""
OLD_IFS="$IFS"
IFS=:
for i in $LD_RUN_PATH
do
rpath="$rpath -Wl,-rpath -Wl,$i"
done
IFS="$OLD_IFS"
exec gcc -Wl,-rpath -Wl,/usr/lib/gcc-snapshot/lib \
-Wl,-rpath -Wl,/usr/lib/gcc-snapshot/lib32 \
-Wl,-rpath -Wl,/usr/lib/gcc-snapshot/libx32 $rpath "$@"
cventin:~> cat tst.c
int main (void)
{
return 0;
}
cventin:~> gcc-snapshot -m32 -fsanitize=address tst.c -o tst
cventin:~> ./tst
AddressSanitizer:DEADLYSIGNAL
=================================================================
==25032==ERROR: AddressSanitizer: SEGV on unknown address 0xf7fa7e70 (pc 0xf7fa7e84 bp 0xffbf40ac sp 0xffbf406c T16777215)
==25032==The signal is caused by a WRITE memory access.
#0 0xf7fa7e83 in _dl_get_tls_static_info (/lib/ld-linux.so.2+0x11e83)
#1 0xf7ac147d (/usr/lib/gcc-snapshot/lib32/libasan.so.5+0x10e47d)
#2 0xf7aafd27 (/usr/lib/gcc-snapshot/lib32/libasan.so.5+0xfcd27)
#3 0xf7fa591a (/lib/ld-linux.so.2+0xf91a)
#4 0xf7f96cb9 (/lib/ld-linux.so.2+0xcb9)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/lib/ld-linux.so.2+0x11e83) in _dl_get_tls_static_info
==25032==ABORTING
-- System Information:
Debian Release: buster/sid
APT prefers unstable-debug
APT policy: (500, 'unstable-debug'), (500, 'stable-updates'), (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 4.15.0-1-amd64 (SMP w/12 CPU cores)
Locale: LANG=POSIX, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=POSIX (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages gcc-snapshot depends on:
ii binutils 2.30-5
ii lib32z1 1:1.2.8.dfsg-5
ii libc6 2.27-1
ii libc6-dev 2.27-1
ii libc6-dev-i386 2.27-1
ii libc6-dev-x32 2.27-1
ii libc6-i386 2.27-1
ii libc6-x32 2.27-1
ii libgc1c2 1:7.4.2-8.1
ii libgmp10 2:6.1.2+dfsg-2
ii libisl15 0.18-1
ii libmpc3 1.1.0-1
ii libmpfr6 4.0.1-1
ii python 2.7.14-4
ii zlib1g 1:1.2.8.dfsg-5
gcc-snapshot recommends no packages.
Versions of packages gcc-snapshot suggests:
ii binutils [binutils-gold] 2.30-5
-- no debconf information
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