syzkaller login: [   72.200322][ T3143] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'.
[   72.204916][ T3143] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'.
[   72.225983][ T3143] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'.
Warning: Permanently added '[localhost]:45278' (ECDSA) to the list of known hosts.
1970/01/01 00:01:30 fuzzer started
1970/01/01 00:01:34 dialing manager at localhost:45771
1970/01/01 00:01:35 syscalls: 2894
1970/01/01 00:01:35 code coverage: CONFIG_KCOV is not enabled
1970/01/01 00:01:35 comparison tracing: CONFIG_KCOV is not enabled
1970/01/01 00:01:35 extra coverage: CONFIG_KCOV is not enabled
1970/01/01 00:01:35 setuid sandbox: enabled
1970/01/01 00:01:35 namespace sandbox: enabled
1970/01/01 00:01:35 Android sandbox: /sys/fs/selinux/policy does not exist
1970/01/01 00:01:35 fault injection: enabled
1970/01/01 00:01:35 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
1970/01/01 00:01:35 net packet injection: enabled
1970/01/01 00:01:35 net device setup: enabled
1970/01/01 00:01:35 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist
1970/01/01 00:01:35 devlink PCI setup: PCI device 0000:00:10.0 is not available
1970/01/01 00:01:35 USB emulation: enabled
1970/01/01 00:01:35 hci packet injection: /dev/vhci does not exist
1970/01/01 00:01:35 wifi device emulation: /sys/class/mac80211_hwsim/ does not exist
1970/01/01 00:01:35 802.15.4 emulation: /sys/bus/platform/devices/mac802154_hwsim does not exist
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x10 pc=0x290708]

goroutine 1 [running]:
github.com/google/syzkaller/prog.(*ChoiceTable).Enabled(...)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/prio.go:239
main.(*Fuzzer).checkDisabledCalls(0x400009a000, 0x40002dc2c0)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:469 +0x58
main.(*Fuzzer).deserializeInput(0x400009a000, 0x40001cc480, 0x75, 0x75, 0x0)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:460 +0xf8
main.(*Fuzzer).addCandidateInput(0x400009a000, 0x40001cc480, 0x75, 0x75, 0x101)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:438 +0x40
main.(*Fuzzer).poll(0x400009a000, 0x4000056001, 0x0, 0x40000120d8)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:409 +0x3a0
main.main()
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:273 +0xedc

VM DIAGNOSIS:
12:21:05  Registers:
info registers vcpu 0
 PC=0000000000074ab4 X00=0000000000000002 X01=000000000032ad9d
X02=0000000000000002 X03=0000000000000000 X04=0000000000000000
X05=0000000000000000 X06=000000000000003e X07=00000000006935fd
X08=0000000000000040 X09=0000000000000019 X10=0000000000000007
X11=0000000000696ad9 X12=0000000000693448 X13=000000000074e7c0
X14=0000000000000000 X15=0000000000000001 X16=0000000000290708
X17=00000000002906b0 X18=0000000000000000 X19=0000000000000098
X20=00000040000379b0 X21=00000040004c3700 X22=0000004000046000
X23=0000000000000000 X24=0000000000000000 X25=0000000000000000
X26=00000040004c3558 X27=0000000000000000 X28=0000004000000c00
X29=0000004000037938 X30=00000000000432b8  SP=0000004000037940
PSTATE=20000000 --C- EL0t  BTYPE=0     FPCR=00000000 FPSR=00000010
P00=0000 P01=0000 P02=0000 P03=0000 P04=0000 P05=0000 P06=0000 P07=0000
P08=0000 P09=0000 P10=0000 P11=0000 P12=0000 P13=0000 P14=0000 P15=0000
FFR=0000
Z00=0000000000000000:0000000000000000 Z01=662d7a79732f7265:6c6c616b7a79732f
Z02=006f672e72657a7a:75662f72657a7a75 Z03=0000000000000000:0000000000000000
Z04=4000000000000000:0000000000000000 Z05=4010040140100401:4010040140100401
Z06=4000000000000000:4000000000000000 Z07=0000000000000000:3feac66ddfc9699b
Z08=0000000000000000:3f7c66de11491380 Z09=0000000000000000:3fe45b863f7c15c0
Z10=0000000000000000:3fe0000000000000 Z11=0000000000000000:0000000000000000
Z12=0000000000000000:0000000000000000 Z13=0000000000000000:0000000000000000
Z14=0000000000000000:0000000000000000 Z15=0000000000000000:0000000000000000
Z16=0000000000000000:0000000000000000 Z17=0000000000000000:0000000000000000
Z18=0000000000000000:0000000000000000 Z19=0000000000000000:0000000000000000
Z20=0000000000000000:0000000000000000 Z21=0000000000000000:0000000000000000
Z22=0000000000000000:0000000000000000 Z23=0000000000000000:0000000000000000
Z24=0000000000000000:0000000000000000 Z25=0000000000000000:0000000000000000
Z26=0000000000000000:0000000000000000 Z27=0000000000000000:0000000000000000
Z28=0000000000000000:0000000000000000 Z29=0000000000000000:0000000000000000
Z30=0000000000000013:00000000f02b7424 Z31=0000000000000000:0000000000000000
info registers vcpu 1
 PC=fffffbfffdbfa7e0 X00=0000000000000054 X01=0000aaaae619fd90
X02=0000000000000054 X03=0000000000000000 X04=0000000000000000
X05=0000aaaab43cd754 X06=2e6f6972702f676f X07=6d0a3933323a6f67
X08=0000000000000040 X09=68632e2972657a7a X10=62617369446b6365
X11=736c6c614364656c X12=0000000000004040 X13=657a7a75462a282e
X14=6b7a79732f656c67 X15=72702f72656c6c61 X16=0000aaaab444b8c8
X17=0000ffff8233e160 X18=000000002b5fc38e X19=0000000000000004
X20=0000000000000054 X21=0000000000000004 X22=0000ffff827b6f60
X23=0000000000000004 X24=0000aaaab444de00 X25=0000aaaab444b000
X26=0000000000000004 X27=0000aaaab43fdcf0 X28=0000000000000001
X29=0000fffff9630070 X30=0000aaaab43d8708  SP=ffff800012d6c000
PSTATE=404003c9 -Z-- EL2h  BTYPE=0     FPCR=00000000 FPSR=00000000
P00=0000 P01=0000 P02=0000 P03=0000 P04=0000 P05=0000 P06=0000 P07=0000
P08=0000 P09=0000 P10=0000 P11=0000 P12=0000 P13=0000 P14=0000 P15=0000
FFR=0000
Z00=0000000000000000:0000000000000000 Z01=765af33e38f8fecf:3fb0b49e1cc2d1ff
Z02=19a106125c57092e:cb4b5616e3e55ca0 Z03=839bea335b5d2486:8c0793565e30f7ee
Z04=c272252d4fa126d1:a973b2c8ccdd1d73 Z05=b7643f2c4585fdcb:2b38654d496d96a7
Z06=7756efad2742b5ea:095172bb7d5b6849 Z07=63e53f38ab0b1718:8ad24c29af5d4ab4
Z08=0000000000000000:0000000000000000 Z09=0000000000000000:0000000000000000
Z10=0000000000000000:0000000000000000 Z11=0000000000000000:0000000000000000
Z12=0000000000000000:0000000000000000 Z13=0000000000000000:0000000000000000
Z14=0000000000000000:0000000000000000 Z15=0000000000000000:0000000000000000
Z16=2b7a46ac86063d40:7e3957987195799e Z17=6420387e380c3a01:74f324f9ed04cf17
Z18=4586416b7a3de1d3:f39e13013e4b24c6 Z19=365da2d8a42c6e93:ef43eab091e2d5fd
Z20=b201759eb414c408:7b95b7032b58f9d5 Z21=3be41e0ea1266198:e20a281af901287e
Z22=831945fd1a9dcf08:354537ec80f6fa37 Z23=a275e88b479fec5e:a72ffd1cf1f2de9b
Z24=6b20657479622d32:3320646e61707865 Z25=9697a58aa530dc4b:109e8bff56a3010f
Z26=e4ec6433c32dc142:3561e3aa42fe12ff Z27=2300000000000000:0000000000000006
Z28=2300000000000000:0000000000000007 Z29=2300000000000000:0000000000000008
Z30=1800000000000000:000000000000000e Z31=0000000000000000:0000000000000004