panic: runtime error: index out of range [291569362] with length 43233

goroutine 1 [running]:
compress/flate.(*compressor).findMatch(0x1?, 0xa7df, 0x67ae19?, 0x67bc4c?, 0xc0004a23e0?)
	/usr/local/go/src/compress/flate/deflate.go:256 +0x29c
compress/flate.(*compressor).deflate(0xc000580000)
	/usr/local/go/src/compress/flate/deflate.go:436 +0x19e
compress/flate.(*compressor).write(0xc000580000, {0xc0009d4fe7?, 0x16164, 0xbac960?})
	/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(0xc0002e6120, {0xc0009d4fe7?, 0xc000a53268?, 0xc0?})
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/rpctype/rpc.go:153 +0x26
bufio.(*Writer).Write(0xc0002ae180, {0xc0009d4005?, 0x9c1ae5?, 0xc00050a130?})
	/usr/local/go/src/bufio/bufio.go:679 +0xea
encoding/gob.(*Encoder).writeMessage(0xc00050a0a0, {0xd1d7c0, 0xc0002ae180}, 0xc00050a0d8)
	/usr/local/go/src/encoding/gob/encoder.go:82 +0x3bf
encoding/gob.(*Encoder).EncodeValue(0xc00050a0a0, {0xa895e0?, 0xc00077dc00?, 0x216f560e8?})
	/usr/local/go/src/encoding/gob/encoder.go:253 +0x448
encoding/gob.(*Encoder).Encode(0x78d6726322df6c8?, {0xa895e0?, 0xc00077dc00?})
	/usr/local/go/src/encoding/gob/encoder.go:176 +0x75
net/rpc.(*gobClientCodec).WriteRequest(0xc0002e6960, 0xc0002e6990?, {0xa895e0, 0xc00077dc00})
	/usr/local/go/src/net/rpc/client.go:221 +0x53
net/rpc.(*Client).send(0xc000392120, 0xc0008065f0)
	/usr/local/go/src/net/rpc/client.go:91 +0x224
net/rpc.(*Client).Go(0xc000392120, {0xc189da, 0x14}, {0xa895e0, 0xc00077dc00}, {0xa89620, 0xc0008065a0}, 0xc0000ae6c0)
	/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(0x0?, {0xc189da, 0x14}, {0xa895e0, 0xc00077dc00}, {0xa89620, 0xc0008065a0})
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/rpctype/rpc.go:114 +0x165
main.(*FuzzerTool).exchangeDataCall(0xc00014aee0, 0x1, {0xc000a53a80, 0x1, 0xb35c40?}, 0x242db9)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:337 +0x4a5
main.(*FuzzerTool).exchangeDataWorker(0xc00014aee0)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:375 +0x85
main.main()
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:259 +0x130c