ZeroGod crashing after receiving IPP request #1234
Description
ZeroGod Crashes after IPP request
Description
I try to impersonate a printer with zerogod, and when I interact with the printer (like select it or discover it)
Environment
Info:
- Bettercap version:
bettercap v2.41.4 (built for linux amd64 with go1.25.1)(Installed withgo install) - OS: Linux Debian 12 on amd64
- Args: -iface wlo1
net.probe onzerogod.discovery onzerogod.advertise printer.yaml- Error output:
192.168.9.0/24 > 192.168.9.147 » panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x18 pc=0x999584]
goroutine 1697 [running]:
io.ReadAtLeast({0x0, 0x0}, {0xc000a74028, 0x1, 0x1}, 0x1)
/usr/local/go/src/io/io.go:335 +0x64
io.ReadFull(...)
/usr/local/go/src/io/io.go:354
encoding/binary.Read({0x0, 0x0}, {0x37b2a60, 0x470bd60}, {0x136e460, 0xc001029340})
/usr/local/go/src/encoding/binary/binary.go:262 +0xa5
github.com/phin1x/go-ipp.(*RequestDecoder).Decode(0xc001141f70, {0x0, 0x0})
/home/xxx/go/pkg/mod/github.com/phin1x/go-ipp@v1.6.1/request.go:126 +0x72
github.com/bettercap/bettercap/v2/modules/zerogod.ippClientHandler(0xc0009b5200)
/home/xxx/go/pkg/mod/github.com/bettercap/bettercap/v2@v2.41.4/modules/zerogod/zerogod_ipp_handler.go:57 +0x3ae
created by github.com/bettercap/bettercap/v2/modules/zerogod.(*Acceptor).startTCP.func1 in goroutine 536
/home/xxx/go/pkg/mod/github.com/bettercap/bettercap/v2@v2.41.4/modules/zerogod/zerogod_acceptor.go:120 +0x553
Steps to Reproduce
1.Start bettercap
2. Start net.probe and zerogod.discovery
3. Load yaml config from file
4. Try to print from mobile
5. Error before you press print
Thank you
(also issue 1234!!!)