panic: runtime error: index out of range [4293558274] with length 47736

goroutine 1 [running]:
compress/flate.(*compressor).findMatch(0xc0004343e0?, 0xb976, 0xc0003b5000?, 0x67782a?, 0x678fe5?)
	/usr/local/go/src/compress/flate/deflate.go:256 +0x29c
compress/flate.(*compressor).deflate(0xc000576000)
	/usr/local/go/src/compress/flate/deflate.go:436 +0x19e
compress/flate.(*compressor).syncFlush(0xc000576000)
	/usr/local/go/src/compress/flate/deflate.go:558 +0x3b
compress/flate.(*Writer).Flush(...)
	/usr/local/go/src/compress/flate/deflate.go:725
github.com/google/syzkaller/pkg/rpctype.(*flateConn).Write(0xc0004ed5c0, {0xc000846fe8?, 0xc000365258?, 0xc0?})
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/rpctype/rpc.go:153 +0x45
bufio.(*Writer).Write(0xc0004569c0, {0xc000846006?, 0x9c1a05?, 0xc0000361d0?})
	/usr/local/go/src/bufio/bufio.go:679 +0xea
encoding/gob.(*Encoder).writeMessage(0xc000036140, {0xd1ea00, 0xc0004569c0}, 0xc000036178)
	/usr/local/go/src/encoding/gob/encoder.go:82 +0x3bf
encoding/gob.(*Encoder).EncodeValue(0xc000036140, {0xa8a640?, 0xc0006b7900?, 0xc000365440?})
	/usr/local/go/src/encoding/gob/encoder.go:253 +0x448
encoding/gob.(*Encoder).Encode(0x895dab41ad968832?, {0xa8a640?, 0xc0006b7900?})
	/usr/local/go/src/encoding/gob/encoder.go:176 +0x75
net/rpc.(*gobClientCodec).WriteRequest(0xc000462540, 0xc000462ba0?, {0xa8a640, 0xc0006b7900})
	/usr/local/go/src/net/rpc/client.go:221 +0x53
net/rpc.(*Client).send(0xc00030e060, 0xc0006c10e0)
	/usr/local/go/src/net/rpc/client.go:91 +0x224
net/rpc.(*Client).Go(0xc00030e060, {0xc19a99, 0x14}, {0xa8a640, 0xc0006b7900}, {0xa8a680, 0xc0006c1090}, 0xc00038d260)
	/usr/local/go/src/net/rpc/client.go:315 +0x13a
net/rpc.(*Client).Call(...)
	/usr/local/go/src/net/rpc/client.go:321
github.com/google/syzkaller/pkg/rpctype.(*RPCClient).Call(0xc0004ec5d0, {0xc19a99, 0x14}, {0xa8a640, 0xc0006b7900}, {0xa8a680, 0xc0006c1090})
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/rpctype/rpc.go:110 +0x154
main.(*FuzzerTool).exchangeDataCall(0xc000200000, 0x1, {0xc000365a70, 0x1, 0xb36ce0?}, 0x2dff04)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:350 +0x4a5
main.(*FuzzerTool).exchangeDataWorker(0xc000200000)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:388 +0x85
main.main()
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:272 +0x1354