[Bug 7598] New: Crash executing code - Fuzz Testing

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=7598

           Summary: Crash executing code - Fuzz Testing
           Product: Busybox
           Version: 1.21.x
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P5
         Component: Other
        AssignedTo: unassigned at busybox.net
        ReportedBy: fernando at null-life.com
                CC: busybox-cvs at busybox.net
   Estimated Hours: 0.0


The following code makes busybox segfault:

export R="";
echo "${R:$((${R}-1)):1}"

I don't have a busybox debug version at the moment.

$ gdb busybox

...

(gdb) run  sh -c 'export R="";echo "${R:$((${R}-1)):1}"'^C
Starting program: /bin/busybox sh -c 'export R="";echo "${R:$((${R}-1)):1}"'^C

Program received signal SIGSEGV, Segmentation fault.
0x0000000000422825 in ?? ()

-- 
Configure bugmail: https://bugs.busybox.net/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.