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bpo-30245: possible overflow when organize struct.pack_into error message #1682

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Merged
zhangyangyu merged 10 commits into from
Jun 2, 2017
Merged

bpo-30245: possible overflow when organize struct.pack_into error message #1682

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b46b18d
fix 30245
johanliu May 20, 2017
f228dd7
fix issue 30245
johanliu May 20, 2017
890b93e
fix issue 30245
johanliu May 20, 2017
c876f9a
fix 30245
johanliu May 20, 2017
d7cc609
add name to ACKS
johanliu May 20, 2017
2c3a43e
fix issue30245
johanliu May 20, 2017
3e1d50f
fix
johanliu May 20, 2017
c4a9927
fix
johanliu May 20, 2017
9ed5051
add space in Misc/NEWS
johanliu May 20, 2017
adac2da
Merge branch 'master' into issue30245
johanliu Jun 2, 2017
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fix 30245
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@johanliu
johanliu committed May 20, 2017
commit b46b18dd36a1a40aace1efb85a4f088dd6ce6a27
6 changes: 5 additions & 1 deletion Modules/_struct.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1929,11 +1929,15 @@ s_pack_into(PyObject *self, PyObject **args, Py_ssize_t nargs, PyObject *kwnames

/* Check boundaries */
if ((buffer.len - offset) < soself->s_size) {

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@serhiy-storchaka serhiy-storchaka May 20, 2017

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Please remove these empty lines. They look distracting.

assert(offset >= 0);
assert(soself->s_size >= 0);

PyErr_Format(StructError,
"pack_into requires a buffer of at least %zd bytes for "
"packing %zd bytes at offset %zd "
"(actual buffer size is %zd)",
soself->s_size + offset,
(size_t)soself->s_size + (size_t)offset,
soself->s_size,
offset,
buffer.len);
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