[Bug 14571] New: ash crashes with fork (&) and stty -echo

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=14571

            Bug ID: 14571
           Summary: ash crashes with fork (&) and stty -echo
           Product: Busybox
           Version: 1.33.x
          Hardware: All
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P5
         Component: Other
          Assignee: unassigned at busybox.net
          Reporter: cyrilbur at gmail.com
                CC: busybox-cvs at busybox.net
  Target Milestone: ---

Setting -echo and leaving a dangling fork results in an ash crash.

I have a relatively stripped down busybox, I am using the busybox coreutls.

Reproduce:

stty -echo
sleep 1 & ps &
             ^ This is the problem

ash will crash.

I have done the same thing with bash and dash and neither crash.

If I have time I will endeavour to get more information.

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