The makecontext function in the GNU C Library (aka glibc or libc6) before 2.25 creates execution contexts incompatible with the unwinder on ARM EABI (32-bit) platforms, which might allow context-dependent attackers to cause a denial of service (hang), as demonstrated by applications compiled using gccgo, related to backtrace generation.
http://www.openwall.com/lists/oss-security/2016/08/18/12
http://lists.opensuse.org/opensuse-updates/2016-10/msg00009.html