[Bug 28812] New: Uninitialized memory read in ContextualShape_Oriya() in test_ScriptShapeOpenType

http://bugs.winehq.org/show_bug.cgi?id=28812

Bug #: 28812
           Summary: Uninitialized memory read in ContextualShape_Oriya()
                    in test_ScriptShapeOpenType
           Product: Wine
           Version: 1.3.30
          Platform: x86
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: usp10
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]
    Classification: Unclassified

In "make usp10.ok" in usp10/tests, valgrind complains:

Use of uninitialised value of size 4
   at  get_table_entry (usp10_internal.h:118)
   by  unicode_lex (shape.c:2331)
   by  oriya_lex (shape.c:2659)
   by  parse_vowel_syllable (indic.c:166)
   by  Indic_process_next_syllable (indic.c:188)
   by  Indic_ReorderCharacters (indic.c:338)
   by  ContextualShape_Oriya (shape.c:2697)
   by  SHAPE_ContextualShaping (shape.c:3319)
   by  ScriptShapeOpenType (usp10.c:2125)
   by  _test_shape_ok (usp10.c:443)
   by  test_ScriptShapeOpenType (usp10.c:970)
   by  func_usp10 (usp10.c:2577)
   by  run_test (test.h:556)
   by  main (test.h:624)
 Uninitialised value was created by a client request
   at  mark_block_uninitialized (heap.c:208)
   by  initialize_block (heap.c:239)
   by  RtlAllocateHeap (heap.c:1703)
   by  ContextualShape_Oriya (shape.c:2688)
   by  SHAPE_ContextualShaping (shape.c:3319)
   by  ScriptShapeOpenType (usp10.c:2125)
   by  _test_shape_ok (usp10.c:443)
   by  test_ScriptShapeOpenType (usp10.c:970)
   by  func_usp10 (usp10.c:2577)
   by  run_test (test.h:556)
   by  main (test.h:624)

Conditional jump or move depends on uninitialised value(s)
   at  unicode_lex (shape.c:2329)
   by  oriya_lex (shape.c:2659)
   by  parse_vowel_syllable (indic.c:166)
   by  Indic_process_next_syllable (indic.c:188)
   by  Indic_ReorderCharacters (indic.c:338)
   by  ContextualShape_Oriya (shape.c:2697)
   by  SHAPE_ContextualShaping (shape.c:3319)
   by  ScriptShapeOpenType (usp10.c:2125)
   by  _test_shape_ok (usp10.c:443)
   by  test_ScriptShapeOpenType (usp10.c:970)
   by  func_usp10 (usp10.c:2577)
   by  run_test (test.h:556)
   by  main (test.h:624)
 Uninitialised value was created by a client request
   at  mark_block_uninitialized (heap.c:208)
   by  initialize_block (heap.c:239)
   by  RtlAllocateHeap (heap.c:1703)
   by  ContextualShape_Oriya (shape.c:2688)
   by  SHAPE_ContextualShaping (shape.c:3319)
   by  ScriptShapeOpenType (usp10.c:2125)
   by  _test_shape_ok (usp10.c:443)
   by  test_ScriptShapeOpenType (usp10.c:970)
   by  func_usp10 (usp10.c:2577)
   by  run_test (test.h:556)
   by  main (test.h:624)

Conditional jump or move depends on uninitialised value(s)
   at  oriya_lex (shape.c:2655)
   by  parse_vowel_syllable (indic.c:166)
   by  Indic_process_next_syllable (indic.c:188)
   by  Indic_ReorderCharacters (indic.c:338)
   by  ContextualShape_Oriya (shape.c:2697)
   by  SHAPE_ContextualShaping (shape.c:3319)
   by  ScriptShapeOpenType (usp10.c:2125)
   by  _test_shape_ok (usp10.c:443)
   by  test_ScriptShapeOpenType (usp10.c:970)
   by  func_usp10 (usp10.c:2577)
   by  run_test (test.h:556)
   by  main (test.h:624)
 Uninitialised value was created by a client request
   at  mark_block_uninitialized (heap.c:208)
   by  initialize_block (heap.c:239)
   by  RtlAllocateHeap (heap.c:1703)
   by  ContextualShape_Oriya (shape.c:2688)
   by  SHAPE_ContextualShaping (shape.c:3319)
   by  ScriptShapeOpenType (usp10.c:2125)
   by  _test_shape_ok (usp10.c:443)
   by  test_ScriptShapeOpenType (usp10.c:970)
   by  func_usp10 (usp10.c:2577)
   by  run_test (test.h:556)
   by  main (test.h:624)