An issue was discovered in yasm version 1.3.0. There is a NULL pointer dereference in do_directive() in modules/preprocs/nasm/nasm-pp.c. Reference: http://github.com/yasm/yasm/issues/169
Created yasm tracking bugs for this issue: Affects: epel-all [bug 2122730] Affects: fedora-all [bug 2122731]
Latest upstream commit 9defefa still affected.