[AVRO-1034] Avro C Resolved reader does not initialize children of arrays, resulting in segmentation faults

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.6.2
• Fix Version/s: 1.6.3
• Component/s: c

Environment

GNU/Linux Ubuntu 11.10 64-bit

• Assignee: Unassigned
• Reporter: Vivek Nadkarni
• Created: 22/Feb/12 03:51
• Updated: 19/Mar/12 16:34
• Resolved: 01/Mar/12 04:01

Description

As I did in AVRO-984, I created a test program that creates an avro
value corresponding to the following schema:

{"type":"array", "items": {"type": "array", "items": "long"}}

The avro_value is then resolved using a resolved_reader, and an
attempt is made to read from the resolved_reader. This results in a
segmentation fault on Linux.

I believe this issue is similar to the issue in AVRO-984, in which
nested arrays did not work because avro_resolved_array_writer_init()
did not recursively call the init function on its children. In that
case the initialization had to be deferred until a new item was
appended to the array.

I believe that avro_resolved_array_reader_init() should also
recursively call the init function on its children, in a deferred
manner as in AVRO-984, but I don't know how to implement this yet.

I will attach a test program that shows the crash.

Thanks,
Vivek