Project: netty

Language java
OSS-Fuzz project link
Build status: Fuzzers succeeding: Build log
Build status: Code coverage succeeding: Build log
Build status: Fuzz Introspector succeeding: Build log
Fuzzer count 3
Lines of code 84604
Lines covered 2107
Code coverage 2.49%
Code coverage report Report link
Static reachability 12.55%
Fuzz Introspector report Report link (from 2024-07-25)

Historical progression

Functions of interest to fuzz

This section outlines functions that may be of interest to fuzz. They are based on ranking functions that have a lot of complexity but currently exhibit low code coverage. The complexity is calculated based on the function itself as well as the functions called by the given function, i.e. the tree of code that the function triggers.


This is only a minor amount of introspection information available for this project. Please consult the Fuzz Introspector report for more information, e.g. the introspection table of all functions in the target project available here.

Function name Function source file Accumulated cyclomatic complexity Code coverage
[io.netty.channel.CombinedChannelDuplexHandler].channelRead(io.netty.channel.ChannelHandlerContext,java.lang.Object) io.netty.channel.CombinedChannelDuplexHandler 9980 0.0%
[io.netty.handler.codec.http2.Http2ServerUpgradeCodec].prepareUpgradeResponse(io.netty.channel.ChannelHandlerContext,io.netty.handler.codec.http.FullHttpRequest,io.netty.handler.codec.http.HttpHeaders) io.netty.handler.codec.http2.Http2ServerUpgradeCodec 9814 0.0%
[io.netty.handler.codec.http2.DefaultHttp2ConnectionDecoder].decodeFrame(io.netty.channel.ChannelHandlerContext,io.netty.buffer.ByteBuf,java.util.List<Object>) io.netty.handler.codec.http2.DefaultHttp2ConnectionDecoder 9770 0.0%
[io.netty.handler.codec.http2.Http2InboundFrameLogger].readFrame(io.netty.channel.ChannelHandlerContext,io.netty.buffer.ByteBuf,io.netty.handler.codec.http2.Http2FrameListener) io.netty.handler.codec.http2.Http2InboundFrameLogger 9770 0.0%
[io.netty.handler.codec.http2.DefaultHttp2FrameReader].readFrame(io.netty.channel.ChannelHandlerContext,io.netty.buffer.ByteBuf,io.netty.handler.codec.http2.Http2FrameListener) io.netty.handler.codec.http2.DefaultHttp2FrameReader 9767 0.0%
[io.netty.channel.CombinedChannelDuplexHandler].write(io.netty.channel.ChannelHandlerContext,java.lang.Object,io.netty.channel.ChannelPromise) io.netty.channel.CombinedChannelDuplexHandler 9673 0.0%
[io.netty.channel.CombinedChannelDuplexHandler].channelActive(io.netty.channel.ChannelHandlerContext) io.netty.channel.CombinedChannelDuplexHandler 9551 0.0%
[io.netty.channel.CombinedChannelDuplexHandler].userEventTriggered(io.netty.channel.ChannelHandlerContext,java.lang.Object) io.netty.channel.CombinedChannelDuplexHandler 9481 0.0%
[io.netty.handler.codec.http2.Http2ConnectionHandler].channelActive(io.netty.channel.ChannelHandlerContext) io.netty.handler.codec.http2.Http2ConnectionHandler 9460 0.0%
[io.netty.handler.codec.http2.Http2FrameCodec].userEventTriggered(io.netty.channel.ChannelHandlerContext,java.lang.Object) io.netty.handler.codec.http2.Http2FrameCodec 9444 0.0%