[issue3377] Invalid child node access in ast.c
Kristján Valur Jónsson
report at bugs.python.org
Wed Jul 16 15:44:27 CEST 2008
New submission from Kristján Valur Jónsson <kristjan at ccpgames.com>:
Purify complained about reading uninitialized memory in ast.c:752 of
two bytes which corresponds to the type field. Looking into this, line
750 increments i without checking that there are in fact this many
children.
If you add the line:
assert(i < NCH(n));
after line 750 you get an assertion failure when you run
test_keywordonlyarg in the testsuite
----------
components: Interpreter Core
messages: 69787
nosy: krisvale
severity: normal
status: open
title: Invalid child node access in ast.c
type: crash
versions: Python 3.0
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<http://bugs.python.org/issue3377>
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