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https://gitlab.torproject.org/tpo/core/tor.git
synced 2024-12-06 19:41:15 +01:00
Nick Mathewson
00e2310f12
This is a fix for bug 8844, where eugenis correctly notes that there's a sentinel value at the end of the list-of-freelists that's never actually checked. It's a bug since the first version of the chunked buffer code back in 0.2.0.16-alpha. This would probably be a crash bug if it ever happens, but nobody's ever reported something like this, so I'm unsure whether it can occur. It would require write_to_buf, write_to_buf_zlib, read_to_buf, or read_to_buf_tls to get an input size of more than 32K. Still, it's a good idea to fix this kind of thing!
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