[abrt] gawk-4.0.2-4.el7.x86_64 : gawk killed by SIGABRT

Issue

• We have a script using gawk with multidimensional arrays . Everytime we run this script gawk crashes, after accessing the last entry in the array. We suspect that gawk is crashing, once it tries to free memory. The issue happens on Red Hat Enterprise Linux 7 system; the crash does not happen on Red Hat Enterprise Linux 5 and 6 systems.

*** Error in `gawk': free(): invalid next size (fast): 0x0000000002dd99b0 ***
======= Backtrace: =========
/lib64/libc.so.6(+0x7c503)[0x7faf4d117503]
gawk(valinfo+0x74)[0x40e434]
gawk(print_vars+0xbe)[0x40e65e]
gawk(dump_vars+0x31)[0x40e691]
gawk(main+0x11a4)[0x408984]
/lib64/libc.so.6(__libc_start_main+0xf5)[0x7faf4d0bcb35]
gawk[0x408aa5]

• Memory leak seen when running script which uses gawk on Red Hat Enterprise Linux 7.