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prevent buffer overflow in get_data (closes #26171)

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Benjamin Peterson 2016-01-20 22:23:44 -08:00
parent ef9cf08352
commit c4032da201
2 changed files with 8 additions and 0 deletions
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5
Modules/zipimport.c
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@ -1111,6 +1111,11 @@ get_data(PyObject *archive, PyObject *toc_entry)
}
file_offset += l; /* Start of file data */
if (data_size > LONG_MAX - 1) {
fclose(fp);
PyErr_NoMemory();
return NULL;
}
bytes_size = compress == 0 ? data_size : data_size + 1;
if (bytes_size == 0)
bytes_size++;