Hi there, I inadvertently discovered that the following bad input leads to a date core. While I accept that I was throwing garbage at poor old date, I thought that the resulting core merited a bug report.
The string was: date +%s -d'TZ="America/Los_Angeles" "Tue, 14 Jul 2015 04:00:35 +0000"' I was doing this on Centos, but also verified the same issue on Debian (6.0.10) with coreutils 8.5 but the problem did NOT happen on another Debian (jessie/sid) box with coreutils 8.21. CENTOS BOX: [moffatt@centos ~]$ date +%s -d'TZ="America/Los_Angeles" "Tue, 14 Jul 2015 04:00:35 +0000"' *** Error in `date': free(): invalid size: 0x00007ffff49666b0 *** ======= Backtrace: ========= /lib64/libc.so.6(+0x7d19d)[0x7fcc0743719d] date[0x4065e0] date[0x402245] /lib64/libc.so.6(__libc_start_main+0xf5)[0x7fcc073dbaf5] date[0x402275] ======= Memory map: ======== 00400000-0040e000 r-xp 00000000 fd:00 17170463 /usr/bin/date 0060d000-0060e000 r--p 0000d000 fd:00 17170463 /usr/bin/date 0060e000-0060f000 rw-p 0000e000 fd:00 17170463 /usr/bin/date 01df1000-01e12000 rw-p 00000000 00:00 0 [heap] 7fcc00c7d000-7fcc00c92000 r-xp 00000000 fd:00 39470731 /usr/lib64/libgcc_s-4.8.2-20140120.so.1 7fcc00c92000-7fcc00e91000 ---p 00015000 fd:00 39470731 /usr/lib64/libgcc_s-4.8.2-20140120.so.1 7fcc00e91000-7fcc00e92000 r--p 00014000 fd:00 39470731 /usr/lib64/libgcc_s-4.8.2-20140120.so.1 7fcc00e92000-7fcc00e93000 rw-p 00015000 fd:00 39470731 /usr/lib64/libgcc_s-4.8.2-20140120.so.1 7fcc00e93000-7fcc073ba000 r--p 00000000 fd:00 17268312 /usr/lib/locale/locale-archive 7fcc073ba000-7fcc07570000 r-xp 00000000 fd:00 39470740 /usr/lib64/libc-2.17.so 7fcc07570000-7fcc07770000 ---p 001b6000 fd:00 39470740 /usr/lib64/libc-2.17.so 7fcc07770000-7fcc07774000 r--p 001b6000 fd:00 39470740 /usr/lib64/libc-2.17.so 7fcc07774000-7fcc07776000 rw-p 001ba000 fd:00 39470740 /usr/lib64/libc-2.17.so 7fcc07776000-7fcc0777b000 rw-p 00000000 00:00 0 7fcc0777b000-7fcc0779c000 r-xp 00000000 fd:00 39470733 /usr/lib64/ld-2.17.so 7fcc0798a000-7fcc0798d000 rw-p 00000000 00:00 0 7fcc07999000-7fcc0799b000 rw-p 00000000 00:00 0 7fcc0799b000-7fcc0799c000 r--p 00020000 fd:00 39470733 /usr/lib64/ld-2.17.so 7fcc0799c000-7fcc0799d000 rw-p 00021000 fd:00 39470733 /usr/lib64/ld-2.17.so 7fcc0799d000-7fcc0799e000 rw-p 00000000 00:00 0 7ffff4948000-7ffff4969000 rw-p 00000000 00:00 0 [stack] 7ffff49fe000-7ffff4a00000 r-xp 00000000 00:00 0 [vdso] ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0 [vsyscall] [moffatt@centos ~]$ yum info coreutils Loaded plugins: fastestmirror, langpacks Repodata is over 2 weeks old. Install yum-cron? Or run: yum makecache fast Loading mirror speeds from cached hostfile * base: ftp.usf.edu * epel: archive.linux.duke.edu * extras: centos-distro.cavecreek.net * updates: centos.mirror.constant.com Installed Packages Name : coreutils Arch : x86_64 Version : 8.22 Release : 11.el7 Size : 14 M Repo : installed >From repo : anaconda Summary : A set of basic GNU tools commonly used in shell scripts URL : http://www.gnu.org/software/coreutils/ License : GPLv3+ Description : These are the GNU core utilities. This package is the combination of : the old GNU fileutils, sh-utils, and textutils packages. moffatt@centos :~$ uname -a Linux XXXXX 3.13.0-54-generic #91-Ubuntu SMP Tue May 26 19:15:08 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux ------------------------------------------- DEBIAN 6.0.3 BOX michael@debian:~$ date +%s -d'TZ="America/Los_Angeles" "Tue, 14 Jul 2015 04:00:35 +0000"' *** glibc detected *** date: munmap_chunk(): invalid pointer: 0x00007ffff48c67d0 *** ======= Backtrace: ========= /lib/libc.so.6(+0x71e16)[0x7fc1ba269e16] date[0x4040a8] date[0x40244e] /lib/libc.so.6(__libc_start_main+0xfd)[0x7fc1ba216c8d] date[0x401759] ======= Memory map: ======== 00400000-0040e000 r-xp 00000000 ca:01 950349 /bin/date 0060e000-0060f000 rw-p 0000e000 ca:01 950349 /bin/date 0154a000-0156b000 rw-p 00000000 00:00 0 [heap] 7fc1b9a7d000-7fc1b9a93000 r-xp 00000000 ca:01 328963 /lib/libgcc_s.so.1 7fc1b9a93000-7fc1b9c92000 ---p 00016000 ca:01 328963 /lib/libgcc_s.so.1 7fc1b9c92000-7fc1b9c93000 rw-p 00015000 ca:01 328963 /lib/libgcc_s.so.1 7fc1b9c93000-7fc1b9fdc000 r--p 00000000 ca:01 1151015 /usr/lib/locale/locale-archive 7fc1b9fdc000-7fc1b9ff3000 r-xp 00000000 ca:01 329040 /lib/libpthread-2.11.3.so 7fc1b9ff3000-7fc1ba1f2000 ---p 00017000 ca:01 329040 /lib/libpthread-2.11.3.so 7fc1ba1f2000-7fc1ba1f3000 r--p 00016000 ca:01 329040 /lib/libpthread-2.11.3.so 7fc1ba1f3000-7fc1ba1f4000 rw-p 00017000 ca:01 329040 /lib/libpthread-2.11.3.so 7fc1ba1f4000-7fc1ba1f8000 rw-p 00000000 00:00 0 7fc1ba1f8000-7fc1ba351000 r-xp 00000000 ca:01 329045 /lib/libc-2.11.3.so 7fc1ba351000-7fc1ba550000 ---p 00159000 ca:01 329045 /lib/libc-2.11.3.so 7fc1ba550000-7fc1ba554000 r--p 00158000 ca:01 329045 /lib/libc-2.11.3.so 7fc1ba554000-7fc1ba555000 rw-p 0015c000 ca:01 329045 /lib/libc-2.11.3.so 7fc1ba555000-7fc1ba55a000 rw-p 00000000 00:00 0 7fc1ba55a000-7fc1ba561000 r-xp 00000000 ca:01 329042 /lib/librt-2.11.3.so 7fc1ba561000-7fc1ba760000 ---p 00007000 ca:01 329042 /lib/librt-2.11.3.so 7fc1ba760000-7fc1ba761000 r--p 00006000 ca:01 329042 /lib/librt-2.11.3.so 7fc1ba761000-7fc1ba762000 rw-p 00007000 ca:01 329042 /lib/librt-2.11.3.so 7fc1ba762000-7fc1ba780000 r-xp 00000000 ca:01 329041 /lib/ld-2.11.3.so 7fc1ba976000-7fc1ba979000 rw-p 00000000 00:00 0 7fc1ba97d000-7fc1ba97f000 rw-p 00000000 00:00 0 7fc1ba97f000-7fc1ba980000 r--p 0001d000 ca:01 329041 /lib/ld-2.11.3.so 7fc1ba980000-7fc1ba981000 rw-p 0001e000 ca:01 329041 /lib/ld-2.11.3.so 7fc1ba981000-7fc1ba982000 rw-p 00000000 00:00 0 7ffff48b4000-7ffff48c9000 rw-p 00000000 00:00 0 [stack] 7ffff4902000-7ffff4903000 r-xp 00000000 00:00 0 [vdso] ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0 [vsyscall] Aborted root@debian:/home/michael# cat /etc/debian_version 6.0.10 root@debian:/home/michael# date --version date (GNU coreutils) 8.5 Copyright (C) 2010 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Written by David MacKenzie. root@debian:/home/michael# uname -a Linux XXXXX 2.6.32-5-xen-amd64 #1 SMP Tue May 13 18:41:58 UTC 2014 x86_64 GNU/Linux ------------------------------------------- DEBIAN JESSIE/SID BOX ubuntu@JESSIE:~$ date +%s -d'TZ="America/Los_Angeles" "Tue, 14 Jul 2015 04:00:35 +0000"' date: invalid date TZ="America/Los_Angeles" "Tue, 14 Jul 2015 04:00:35 +0000" ubuntu@JESSY:~$ cat /etc/debian_version jessie/sid ubuntu@zeus:~$ date --version date (GNU coreutils) 8.21 Copyright (C) 2013 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Written by David MacKenzie. ubuntu@JESSY:~$ uname -a Linux XXXXXXX 3.13.0-24-generic #47-Ubuntu SMP Fri May 2 23:30:00 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux ------------------------------------------- I can collect further debug if necessary, but the repro is fairly straightforward. Regards, Michael Moffatt.