syzkaller login: [   90.352311][ T3143] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'.
[   90.362556][ T3143] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'.
[   90.378999][ T3143] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'.
Warning: Permanently added '[localhost]:43390' (ECDSA) to the list of known hosts.
1970/01/01 00:01:49 fuzzer started
1970/01/01 00:01:53 dialing manager at localhost:38019
1970/01/01 00:01:54 syscalls: 2839
1970/01/01 00:01:54 code coverage: CONFIG_KCOV is not enabled
1970/01/01 00:01:54 comparison tracing: CONFIG_KCOV is not enabled
1970/01/01 00:01:54 extra coverage: CONFIG_KCOV is not enabled
1970/01/01 00:01:54 setuid sandbox: enabled
1970/01/01 00:01:54 namespace sandbox: enabled
1970/01/01 00:01:54 Android sandbox: /sys/fs/selinux/policy does not exist
1970/01/01 00:01:54 fault injection: enabled
1970/01/01 00:01:54 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
1970/01/01 00:01:54 net packet injection: enabled
1970/01/01 00:01:54 net device setup: enabled
1970/01/01 00:01:54 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist
1970/01/01 00:01:54 devlink PCI setup: PCI device 0000:00:10.0 is not available
1970/01/01 00:01:54 USB emulation: enabled
1970/01/01 00:01:54 hci packet injection: /dev/vhci does not exist
1970/01/01 00:01:54 wifi device emulation: /sys/class/mac80211_hwsim/ does not exist
1970/01/01 00:01:54 802.15.4 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(0x40000689c0, 0x40000fde00)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:469 +0x58
main.(*Fuzzer).deserializeInput(0x40000689c0, 0x4000062240, 0x60, 0x60, 0x0)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:460 +0xf8
main.(*Fuzzer).addCandidateInput(0x40000689c0, 0x4000062240, 0x60, 0x60, 0x101)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:438 +0x40
main.(*Fuzzer).poll(0x40000689c0, 0x40000fd101, 0x0, 0x4000012130)
	/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:
12:21:32  Registers:
info registers vcpu 0
 PC=ffff800013194ab8 X00=ffff800013194ab0 X01=ffff800013194af0
X02=0000000000000001 X03=1fffe00001f8a001 X04=1ffff00003de2f4c
X05=ffff80001ef17a90 X06=00008ffffc21d0ae X07=0000000000000001
X08=ffff80001ef17a97 X09=dfff800000000000 X10=ffff700003de2f52
X11=1ffff00003de2f52 X12=ffff700003de2f53 X13=0000000000000001
X14=1ffff00003de2f34 X15=0000000000000000 X16=0000000000000000
X17=0000000000000000 X18=0000000000000000 X19=ffff8000161777c0
X20=000000000000588c X21=000000000000588c X22=ffff80001ef17c90
X23=dfff800000000000 X24=1ffff00003de2f92 X25=0000000000000001
X26=ffff800016177d40 X27=0000000000000000 X28=00000000000001a4
X29=ffff80001ef17b70 X30=ffff800013194b08  SP=ffff80001ef17b70
PSTATE=10000005 ---V EL1h     FPCR=00000000 FPSR=00000000
Q00=0000000000000000:0000000000000000 Q01=4bf4c3e297f522d7:ee848fedd4fdd244
Q02=d6e71c575417aaa9:84ce72063b2414b0 Q03=e937c35434b3114d:76ffb63ce35e6ec1
Q04=4b7b64448b13b144:d860679ea9897297 Q05=13d0c2307a999275:33f21fed15370ce2
Q06=5b2df87a5325d098:fdd84653e57c1c68 Q07=bb5df91caffddc26:57a3b43a56de7d82
Q08=0000000000000000:0000000000000000 Q09=0000000000000000:0000000000000000
Q10=0000000000000000:0000000000000000 Q11=0000000000000000:0000000000000000
Q12=0000000000000000:0000000000000000 Q13=0000000000000000:0000000000000000
Q14=0000000000000000:0000000000000000 Q15=0000000000000000:0000000000000000
Q16=a1de419ae27d79cb:573861ff8080000b Q17=67a999389583a96a:52c93b54c818521d
Q18=5302c5fbb6b54e2b:20f18599fec24293 Q19=abcb6bacac6faf3b:0275ea592b0c73e7
Q20=dcead165fa91d5ab:2a5c25c1588c52fa Q21=c1c2226c8917ffe2:4bbfe21c52b51ddc
Q22=eb6f5eb686dbd2d1:a6f497d4ad1e7167 Q23=772b5612c38dc96d:5be869b96d636d5b
Q24=6b20657479622d32:3320646e61707865 Q25=0000000000000000:0000000000000000
Q26=0000000000000000:0000000000000000 Q27=0000000000000000:0000000000000000
Q28=0000000000000000:0000000000000000 Q29=0000000000000000:0000000000000000
Q30=0000000000000000:0000000000000000 Q31=0000000000000000:0000000000000004
info registers vcpu 1
 PC=ffff800010011c00 X00=0000000000000002 X01=00000000005ffcaf
X02=0000000000000037 X03=0000000000000000 X04=0000000000000000
X05=0000000000000000 X06=000000000000002c X07=0000000000693600
X08=0000000000000040 X09=0000000000000018 X10=0000000000000008
X11=0000000000699d78 X12=0000000000693448 X13=000000000074e7c0
X14=0000000000000000 X15=0000000000000001 X16=0000000000290708
X17=00000000002906b0 X18=0000000000000000 X19=0000000000000098
X20=0000004000039c08 X21=0000004000039f40 X22=00000040002e8000
X23=0000000000000010 X24=0000000000000001 X25=0000000000000000
X26=0000004000489558 X27=0000000000000000 X28=0000004000001500
X29=0000004000039938 X30=00000000000432b8  SP=ffff800018548000
PSTATE=000003c5 ---- EL1h     FPCR=00000000 FPSR=00000010
Q00=0000000000000000:0000000000000000 Q01=702f676f72702f72:656c6c616b7a7973
Q02=656c6c616b7a7973:2f006f672e6f6972 Q03=0000000000000000:0000000000000000
Q04=0000000000000000:0010000000000000 Q05=4010040140100401:4010040140100401
Q06=0000100000000000:0000100000000000 Q07=0000000000000000:0000000000000001
Q08=0000000000000000:0000000000000001 Q09=0000000000000000:3fe3dbe4b51f5312
Q10=0000000000000000:3fe0000000000000 Q11=0000000000000000:0000000000000000
Q12=0000000000000000:0000000000000000 Q13=0000000000000000:0000000000000000
Q14=0000000000000000:0000000000000000 Q15=0000000000000000:0000000000000000
Q16=0000000000000000:0000000000000000 Q17=0000000000000000:0000000000000000
Q18=0000000000000000:0000000000000000 Q19=0000000000000000:0000000000000000
Q20=0000000000000000:0000000000000000 Q21=0000000000000000:0000000000000000
Q22=0000000000000000:0000000000000000 Q23=0000000000000000:0000000000000000
Q24=0000000000000000:0000000000000000 Q25=0000000000000000:0000000000000000
Q26=0000000000000000:0000000000000000 Q27=0000000000000000:0000000000000000
Q28=0000000000000000:0000000000000000 Q29=0000000000000000:0000000000000000
Q30=000000000000000a:00000000a3061aa0 Q31=0000000000000000:0000000000000000