By connecting a storage medium containing a specially crafted MBR a local user can cause a Linux system to become unresponsive. Product bug: https://bugzilla.redhat.com/show_bug.cgi?id=1349536
Acknowledgments: Name: Michael Gruhn Upstream: Christian Moch
Patch : upstream commit 7164a1c34d18831ac61c6744ad14ce916d389b3f : https://git.kernel.org/cgit/utils/util-linux/util-linux.git/commit/?id=7164a1c3
Created util-linux tracking bugs for this issue: Affects: fedora-all [bug 1354450]
Additional patch, to prevent non-zero recursion : https://github.com/karelzak/util-linux/commit/50d1594c2e6142a3b51d2143c74027480df082e0
This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2016:2605 https://rhn.redhat.com/errata/RHSA-2016-2605.html