panic: runtime error: index out of range [4286644225] with length 58333

goroutine 49 [running]:
compress/flate.(*compressor).findMatch(0xc00008e460?, 0xe2db, 0x67bd7f?, 0x67cbcc?, 0xc0002f45c0?)
	/usr/local/go/src/compress/flate/deflate.go:256 +0x29c
compress/flate.(*compressor).deflate(0xc0005c0000)
	/usr/local/go/src/compress/flate/deflate.go:436 +0x19e
compress/flate.(*compressor).write(0xc0005c0000, {0xc000858fe8?, 0x7c36, 0xbb6ce0?})
	/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(0xc0001436e0, {0xc000858fe8?, 0xc0003b7808?, 0xc0?})
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/rpctype/rpc.go:125 +0x26
bufio.(*Writer).Write(0xc00007c000, {0xc000858006?, 0x9c53c5?, 0xc00008e4f0?})
	/usr/local/go/src/bufio/bufio.go:679 +0xea
encoding/gob.(*Encoder).writeMessage(0xc00008e460, {0xd2c060, 0xc00007c000}, 0xc00008e498)
	/usr/local/go/src/encoding/gob/encoder.go:82 +0x3bf
encoding/gob.(*Encoder).EncodeValue(0xc00008e460, {0xa912a0?, 0xc000529e40?, 0xc0003b79f0?})
	/usr/local/go/src/encoding/gob/encoder.go:253 +0x448
encoding/gob.(*Encoder).Encode(0x7f172a266a11f78b?, {0xa912a0?, 0xc000529e40?})
	/usr/local/go/src/encoding/gob/encoder.go:176 +0x75
net/rpc.(*gobClientCodec).WriteRequest(0xc00007e420, 0xc00007e4b0?, {0xa912a0, 0xc000529e40})
	/usr/local/go/src/net/rpc/client.go:221 +0x53
net/rpc.(*Client).send(0xc000148240, 0xc0006da870)
	/usr/local/go/src/net/rpc/client.go:91 +0x224
net/rpc.(*Client).Go(0xc000148240, {0xc243de, 0x14}, {0xa912a0, 0xc000529e40}, {0xa912e0, 0xc0006da820}, 0xc0006e1ec0)
	/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(0xc000010048, {0xc243de, 0x14}, {0xa912a0, 0xc000529e40}, {0xa912e0, 0xc0006da820})
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/rpctype/rpc.go:85 +0x145
main.(*FuzzerTool).exchangeDataCall(0xc0002c1e40, {0xc000317808, 0xa, 0x11}, 0x1a4388)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:287 +0x216
main.(*FuzzerTool).exchangeDataWorker(0xc0002c1e40)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:327 +0x76
created by main.main in goroutine 1
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:213 +0x12fd