The fix for CVE-2013-4312 incorrectly accounted the number of in-flight fds over a unix domain socket to the original opener of the file-descriptor. This allows another process to arbitrary deplete the original file-openers resource limit for the maximum of open files. CVE-ID request and assignment: http://seclists.org/oss-sec/2016/q1/401 http://seclists.org/oss-sec/2016/q1/412 Upstream patch: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=415e3d3e90ce9e18727e8843ae343eda5a58fad6 Commit, which introduced the issue (it was addressing CVE-2013-4312): https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=712f4aad406bb1ed67f3f98d04c044191f0ff593
Created kernel tracking bugs for this issue: Affects: fedora-all [bug 1311518]
Statement: This issue affects the Linux kernel packages as shipped with Red Hat Enterprise Linux 5. This has been rated as having Moderate security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/. This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 6, 7 and MRG-2.
kernel-4.4.3-300.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.