If /etc/resolv.conf contains addresses which cause the connect system call to fail immediately, queries which trigger search along the search path result in a segmentation fault. A workaround is to remove the problematic addresses from /etc/resolv.conf.
swbz#19825 is a very similar bug in send_vc/TCP (the original bug is about send_dg/UDP), so far only observed under valgrind. swbz#19831 and swbz#19830 should be backported as well, to get cleaner test suite runs.
*** Bug 1331711 has been marked as a duplicate of this bug. ***
glibc-2.22-15.fc23 has been submitted as an update to Fedora 23. https://bodhi.fedoraproject.org/updates/FEDORA-2016-68abc0be35
glibc-2.22-15.fc23 has been pushed to the Fedora 23 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2016-68abc0be35
Pre-existing 2.23 backport: commit 3a188eb4e641d2df0cfd352fd09232347f28fbe1 Author: Florian Weimer <fweimer> Date: Fri Mar 25 11:49:51 2016 +0100 resolv: Always set *resplen2 out parameter in send_dg [BZ #19791] New backport: commit 075b2665b159491fdd17f5aee90d47fa7388ed6f Author: Florian Weimer <fweimer> Date: Wed Apr 27 14:26:47 2016 +0200 resolv: Always set *resplen2 out parameter in send_vc [BZ #19825] In various error scenarios (for example, if the server closes the TCP connection before sending the full response), send_vc can return without resetting the *resplen2 value. This can pass uninitialized or unexpected data to the caller. (cherry picked from commit b9bdfa7c8fa22c944bb5f21a673dfd1f91b71c56)
glibc-2.23.1-6.fc24 has been submitted as an update to Fedora 24. https://bodhi.fedoraproject.org/updates/FEDORA-2016-b321728d74
glibc-2.22-15.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.
glibc-2.23.1-6.fc24 has been pushed to the Fedora 24 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2016-b321728d74
glibc-2.23.1-7.fc24 has been submitted as an update to Fedora 24. https://bodhi.fedoraproject.org/updates/FEDORA-2016-b321728d74
glibc-2.23.1-7.fc24 has been pushed to the Fedora 24 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2016-b321728d74
glibc-2.23.1-7.fc24 has been pushed to the Fedora 24 stable repository. If problems still persist, please make note of it in this bug report.