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Issue #16411: Fix a bug where zlib.decompressobj().flush() might try to access previously-freed memory.

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Patch by Serhiy Storchaka.
This commit is contained in:
Nadeem Vawda 2012-11-11 03:16:44 +01:00
commit ec6dfcffa0
3 changed files with 17 additions and 0 deletions
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2
Modules/zlibmodule.c
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@ -975,6 +975,8 @@ PyZlib_unflush(compobject *self, PyObject *args)
ENTER_ZLIB(self);
start_total_out = self->zst.total_out;
self->zst.avail_in = PyBytes_GET_SIZE(self->unconsumed_tail);
self->zst.next_in = (Byte *)PyBytes_AS_STRING(self->unconsumed_tail);
self->zst.avail_out = length;
self->zst.next_out = (Byte *)PyBytes_AS_STRING(retval);