shared/util.c:normalize_env_assignment() returns a strstrip-ed pointer, which may not be a valid argument to free (because it might not point to the beginning of the allocated memory area). I think the strstrip can be dropped because the caller already performs it (so this change is currently not important, only future modification could expose the problem).
Fixed in git.
systemd-190-1.fc18 has been submitted as an update for Fedora 18. https://admin.fedoraproject.org/updates/systemd-190-1.fc18
Package systemd-191-2.fc18, rtkit-0.11-3.fc18: * should fix your issue, * was pushed to the Fedora 18 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing systemd-191-2.fc18 rtkit-0.11-3.fc18' as soon as you are able to, then reboot. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2012-14581/rtkit-0.11-3.fc18,systemd-191-2.fc18 then log in and leave karma (feedback).
Package glibc-2.16-17.fc18, systemd-192-1.fc18, selinux-policy-3.11.1-23.fc18, rtkit-0.11-3.fc18: * should fix your issue, * was pushed to the Fedora 18 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing glibc-2.16-17.fc18 systemd-192-1.fc18 selinux-policy-3.11.1-23.fc18 rtkit-0.11-3.fc18' as soon as you are able to, then reboot. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2012-14581/selinux-policy-3.11.1-23.fc18,rtkit-0.11-3.fc18,systemd-192-1.fc18,glibc-2.16-17.fc18 then log in and leave karma (feedback).
Package glibc-2.16-17.fc18, rtkit-0.11-3.fc18, systemd-193-1.fc18: * should fix your issue, * was pushed to the Fedora 18 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing glibc-2.16-17.fc18 rtkit-0.11-3.fc18 systemd-193-1.fc18' as soon as you are able to, then reboot. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2012-14581/rtkit-0.11-3.fc18,systemd-193-1.fc18,glibc-2.16-17.fc18 then log in and leave karma (feedback).