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Issue #28275: Fixed possible use adter free in LZMADecompressor.decompress().

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Original patch by John Leitch.
This commit is contained in:
Serhiy Storchaka 2016-09-27 20:23:41 +03:00
commit a12e7842a5
3 changed files with 15 additions and 1 deletions
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4
Modules/_lzmamodule.c
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@ -995,8 +995,10 @@ decompress(Decompressor *d, uint8_t *data, size_t len, Py_ssize_t max_length)
}
result = decompress_buf(d, max_length);
if(result == NULL)
if (result == NULL) {
lzs->next_in = NULL;
return NULL;
}
if (d->eof) {
d->needs_input = 0;