NS wait_for_task references NULL pointer.

[Tomas Brambora]

If we don't find the task to wait for by its TID, we set

hashed_task_t *ht = NULL

and jump to "out" label, where we reference

ht->have_rval

And NS crashes.

[Jakub Jermář]

Hi Tomas,

is there a real-world scenario leading to this bug or did you find it by inspecting the code?

Thanks,
Jakub

[Jakub Jermář]

Martin Sucha discovered a test case:

# redir -o /test.txt -- cat /readme

[Jakub Jermář]

Fixed in changeset:mainline,723.