Description of problem: Crash in the last command: % export LANG=en_US.UTF-8 [hedayat@hv ~]% date Wed Oct 18 10:54:07 +0330 2017 [hedayat@hv ~]% timedatectl Local time: Wed 2017-10-18 11:24:10 +0400 Universal time: Wed 2017-10-18 07:24:10 UTC RTC time: Wed 2017-10-18 07:24:10 Time zone: Asia/Folan (+0400, +0400) Network time on: yes NTP synchronized: yes RTC in local TZ: no [hedayat@hv ~]% [hedayat@hv ~]% export LANG=fa_IR.UTF-8 [hedayat@hv ~]% date چهارشنبه ۱۸ اكتبر ۱۷، ساعت ۱۰:۵۴:۲۴ (+0330) [hedayat@hv ~]% timedatectl Assertion 'xstrftime: a[] must be big enough' failed at ../src/timedate/timedatectl.c:105, function print_status_info(). Aborting. zsh: abort (core dumped) timedatectl Version-Release number of selected component (if applicable): systemd-234-8.fc27.x86_64 How reproducible: Depends on the current day of week. Happens on Wednesdays & Thursdays in fa_IR locale
src/basic/time-util.h:75:#define FORMAT_TIMESTAMP_MAX (3+1+10+1+8+1+6+1+6+1) src/timedate/timedatectl.c:75: char a[FORMAT_TIMESTAMP_MAX]; src/timedate/timedatectl.c:105 xstrftime(a, "%a %Y-%m-%d %H:%M:%S %Z", localtime_r(&sec, &tm)); It seems that the maximum format length assumption only holds for non-wide/variable encoded characters.
https://github.com/systemd/systemd/pull/7123
Nice, thanks for the fast fix!