On Tue, Apr 12, 2022, 3:18 PM Sergio Fuentes < fuentes.sergio.nov2...@gmail.com> wrote:
> Hello, > > Please, run the following 3 commands to reproduce the bug: > > echo '. ./poc.sh' > poc.sh > chmod +x poc.sh > bash -c './poc.sh' > > The backtrace from gdb: > gdb /bin/bash core > ... > Program terminated with signal SIGSEGV, Segmentation fault. > #0 0x00005612fcdece65 in yyparse () > (gdb) bt > #0 0x00005612fcdece65 in yyparse () > #1 0x00005612fcde3869 in parse_command () > #2 0x00005612fce511fc in parse_and_execute () > #3 0x00005612fce50837 in ?? () > > Best regards and thanks, > fs > Patient: "Doctor, it hurts when I do this." Doctor: "Don't do that." You created a script which calls itself repeatedly. That's what happens when you do that. What is it that you're actually trying to do? >
