panic: runtime error: index out of range [294682322] with length 47405

goroutine 1 [running]:
compress/flate.(*compressor).findMatch(0xc000519360?, 0xb82b, 0x68031f?, 0x68116c?, 0xc0002725c0?)
	/usr/local/go/src/compress/flate/deflate.go:256 +0x29c
compress/flate.(*compressor).deflate(0xc0005be000)
	/usr/local/go/src/compress/flate/deflate.go:436 +0x19e
compress/flate.(*compressor).write(0xc0005be000, {0xc000732fe7?, 0x1036f, 0xbba7e0?})
	/usr/local/go/src/compress/flate/deflate.go:544 +0x72
compress/flate.(*Writer).Write(...)
	/usr/local/go/src/compress/flate/deflate.go:710
github.com/google/syzkaller/pkg/rpctype.(*flateConn).Write(0xc00007a840, {0xc000732fe7?, 0xc0009b7380?, 0xc0?})
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/rpctype/rpc.go:128 +0x26
bufio.(*Writer).Write(0xc0004fab80, {0xc000732005?, 0xa094a5?, 0xc0005193f0?})
	/usr/local/go/src/bufio/bufio.go:679 +0xea
encoding/gob.(*Encoder).writeMessage(0xc000519360, {0xd9a460, 0xc0004fab80}, 0xc000519398)
	/usr/local/go/src/encoding/gob/encoder.go:82 +0x3bf
encoding/gob.(*Encoder).EncodeValue(0xc000519360, {0xa94120?, 0xc0004fa040?, 0xc0009b7588?})
	/usr/local/go/src/encoding/gob/encoder.go:253 +0x448
encoding/gob.(*Encoder).Encode(0xe4db321d3d1a16ee?, {0xa94120?, 0xc0004fa040?})
	/usr/local/go/src/encoding/gob/encoder.go:176 +0x75
net/rpc.(*gobClientCodec).WriteRequest(0xc00007aae0, 0xc00007ab40?, {0xa94120, 0xc0004fa040})
	/usr/local/go/src/net/rpc/client.go:221 +0x53
net/rpc.(*Client).send(0xc0004e5da0, 0xc000958050)
	/usr/local/go/src/net/rpc/client.go:91 +0x224
net/rpc.(*Client).Go(0xc0004e5da0, {0xc28265, 0x14}, {0xa94120, 0xc0004fa040}, {0xa94160, 0xc000958000}, 0xc0008e0120)
	/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(0xc0000a2e40, {0xc28265, 0x14}, {0xa94120, 0xc0004fa040}, {0xa94160, 0xc000958000})
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/rpctype/rpc.go:88 +0x145
main.(*FuzzerTool).exchangeDataCall(0xc0000a7450, {0xc0008ac000, 0x1, 0x1}, 0x86882e)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:264 +0x21c
main.(*FuzzerTool).exchangeDataWorker(0xc0000a7450)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:304 +0x76
main.main()
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:203 +0x1175