Remove offset pointer optimization in inftrees.c. #797
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Description
This PR fixes a security vulnerability in inflate_table() that was cloned from zlib but did not receive the security patch. The original issue was reported and fixed under madler/zlib@6a04314.
This PR applies the same patch to eliminate the vulnerability.
References
https://nvd.nist.gov/vuln/detail/cve-2016-9840
madler/zlib@6a04314