[bug-gawk] Segfault when using higher ascii range in regexp

[Jaromir Obr]

Hi,

steps to reproduce:

$ printf "a"|awk '/[\x80-\x81]/ {count++}; END {print count}'

awk: cmd. line:1: fatal error: internal error: segfault

Aborted (core dumped)

or simply:

$ printf "a"|awk '/[\x7f-\x80]/'

awk: cmd. line:1: fatal error: internal error: segfault

Aborted (core dumped)

Used SW:

• Ubuntu 16.04 x86_64
• gawk --version: GNU Awk 4.1.3, API: 1.1 (GNU MPFR 3.1.4, GNU MP 6.1.0)

See the attached crashdump.

Regards

Jaromir Obr

_usr_bin_gawk.1000.crash
Description: Text Data