Starting Permit User Sessions... [ OK ] Started Daily apt download activities. [ OK ] Started Daily apt upgrade and clean activities. [ OK ] Reached target Timers. [ OK ] Started System Logging Service. [ 59.479343][ T8099] sshd (8099) used greatest stack depth: 22952 bytes left [ OK ] Started Permit User Sessions. [ OK ] Started OpenBSD Secure Shell server. [ OK ] Found device /dev/ttyS0. [ OK ] Started getty on tty2-tty6 if dbus and logind are not available. [ OK ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch. [ OK ] Started Getty on tty6. [ OK ] Started Getty on tty5. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty1. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started Getty on tty2. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Warning: Permanently added '10.128.0.14' (ECDSA) to the list of known hosts. 2021/05/10 11:53:13 fuzzer started Debian GNU/Linux 9 syzkaller ttyS0 2021/05/10 11:53:13 dialing manager at 10.128.0.169:34421 2021/05/10 11:53:13 syscalls: 3585 2021/05/10 11:53:13 code coverage: enabled 2021/05/10 11:53:13 comparison tracing: enabled 2021/05/10 11:53:13 extra coverage: enabled 2021/05/10 11:53:13 setuid sandbox: enabled 2021/05/10 11:53:13 namespace sandbox: enabled 2021/05/10 11:53:13 Android sandbox: enabled 2021/05/10 11:53:13 fault injection: enabled 2021/05/10 11:53:13 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2021/05/10 11:53:13 net packet injection: enabled 2021/05/10 11:53:13 net device setup: enabled 2021/05/10 11:53:13 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2021/05/10 11:53:13 devlink PCI setup: PCI device 0000:00:10.0 is not available 2021/05/10 11:53:13 USB emulation: enabled 2021/05/10 11:53:13 hci packet injection: enabled 2021/05/10 11:53:13 wifi device emulation: enabled 2021/05/10 11:53:13 802.15.4 emulation: enabled panic: runtime error: invalid memory address or nil pointer dereference [signal SIGSEGV: segmentation violation code=0x1 addr=0x10 pc=0x6e01c8] goroutine 1 [running]: github.com/google/syzkaller/prog.(*ChoiceTable).Enabled(...) /syzkaller/gopath/src/github.com/google/syzkaller/prog/prio.go:239 main.(*Fuzzer).checkDisabledCalls(0xc00009ba00, 0xc0000b1c00) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:469 +0x68 main.(*Fuzzer).deserializeInput(0xc00009ba00, 0xc00029e1c0, 0x1a4, 0x1a4, 0x0) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:460 +0x14c main.(*Fuzzer).addCandidateInput(0xc00009ba00, 0xc00029e1c0, 0x1a4, 0x1a4, 0x101) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:438 +0x4d main.(*Fuzzer).poll(0xc00009ba00, 0xc000308701, 0x0, 0xc000014720) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:409 +0x4d4 main.main() /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:273 +0x1271 syzkaller login: