syzkaller login: [ 68.836202][ T3139] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 72.860195][ T3139] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 72.864349][ T3139] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. Warning: Permanently added '[localhost]:55840' (ECDSA) to the list of known hosts. 1970/01/01 00:01:22 fuzzer started 1970/01/01 00:01:27 dialing manager at localhost:45771 1970/01/01 00:01:28 syscalls: 2894 1970/01/01 00:01:28 code coverage: CONFIG_KCOV is not enabled 1970/01/01 00:01:28 comparison tracing: CONFIG_KCOV is not enabled 1970/01/01 00:01:28 extra coverage: CONFIG_KCOV is not enabled 1970/01/01 00:01:28 setuid sandbox: enabled 1970/01/01 00:01:28 namespace sandbox: enabled 1970/01/01 00:01:28 Android sandbox: /sys/fs/selinux/policy does not exist 1970/01/01 00:01:28 fault injection: enabled 1970/01/01 00:01:28 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 1970/01/01 00:01:28 net packet injection: enabled 1970/01/01 00:01:28 net device setup: enabled 1970/01/01 00:01:28 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 1970/01/01 00:01:28 devlink PCI setup: PCI device 0000:00:10.0 is not available 1970/01/01 00:01:28 USB emulation: enabled 1970/01/01 00:01:28 hci packet injection: /dev/vhci does not exist 1970/01/01 00:01:28 wifi device emulation: /sys/class/mac80211_hwsim/ does not exist 1970/01/01 00:01:28 802.15.4 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(0x400006a000, 0x4000303ac0) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:469 +0x58 main.(*Fuzzer).deserializeInput(0x400006a000, 0x40001a8070, 0x64, 0x64, 0x0) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:460 +0xf8 main.(*Fuzzer).addCandidateInput(0x400006a000, 0x40001a8070, 0x64, 0x64, 0x101) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:438 +0x40 main.(*Fuzzer).poll(0x400006a000, 0x4000196701, 0x0, 0x40002900a0) /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: 12:05:05 Registers: info registers vcpu 0 PC=ffff8000101270e0 X00=0000000000000021 X01=ffff800010003440 X02=ffff800010003480 X03=ffff8000100034c0 X04=3ead800010026f74 X05=0000000000000001 X06=0000000000000001 X07=0000000000000001 X08=ffff80001000356c X09=0000000013ccd8b8 X10=000000000000000c X11=f1ff000003400260 X12=0000000000000040 X13=e1477e39187169e4 X14=0b204362ae00ab23 X15=0000000000000000 X16=0000000000000000 X17=0000000000000000 X18=0000000000000000 X19=f9ff00000325cc40 X20=ffff8000101270e0 X21=ffff800010003480 X22=f1ff000003159000 X23=0000000000000001 X24=ffff800011f00000 X25=ffff80001027b3c0 X26=0000000000000000 X27=f1ff000003159000 X28=0000000000000014 X29=ffff800010003420 X30=f5bd80001027e028 SP=ffff800010003420 PSTATE=80400009 N--- 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=54ec25f1bd5d4603:227c2e355c20a68f Z02=589ab53dd7f8deaa:f98c4045c725f380 Z03=71962734711dbad7:f087d35b05f20dcc Z04=74f6f486e6ac6cc7:cd127883d9153a11 Z05=38f3bd8fc6f373cb:a79586f8eb61fd56 Z06=b5edfbdf670d2b6f:dcdfb4d1ec6f56f5 Z07=e07b0a65e4bf1c47:7c0690d9922c32b7 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=9f567b9579aea051:5b1a716c59c62df6 Z17=4acc2cad49306a4b:5cd4c49063982a72 Z18=c950b3aacebce36c:89d77571d9eca2a3 Z19=e53d7b1b5ae3a31f:f9a8d3fda9093739 Z20=f563bb56acb46e69:ebec9d9babf51fae Z21=19d94b534adb72e4:918b28fdbd6b4dda Z22=d192beca7135b124:1a13b187e58af1a7 Z23=389ac7121e5cc64e:ba86a6472abd7e2b Z24=6b20657479622d32:3320646e61707865 Z25=0000000000000000:0000000000000000 Z26=0000000000000000:0000000000000000 Z27=0000000000000000:0000000000000000 Z28=0000000000000000:0000000000000000 Z29=0000000000000000:0000000000000000 Z30=0000000000000000:0000000000000000 Z31=0000000000000000:0000000000000004 info registers vcpu 1 PC=fffffbfffdbfa7e0 X00=0000000000000001 X01=000000000032ad45 X02=0000000000000001 X03=0000000000000000 X04=0000000000000000 X05=0000000000000000 X06=0000004000039940 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=0000004000039990 X21=000000400002cc00 X22=000000400005c000 X23=0000000000000000 X24=0000000000000000 X25=0000000000000000 X26=00000040002bd558 X27=00000000000437c0 X28=0000004000001200 X29=0000004000039918 X30=00000000000432b8 SP=ffff800012d2c000 PSTATE=404003c9 -Z-- EL2h 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=702f676f72702f72:656c6c616b7a7973 Z02=656c6c616b7a7973:2f006f672e6f6972 Z03=0000000000000000:0000000000000000 Z04=0000000000000000:0010000000000000 Z05=4010040140100401:4010040140100401 Z06=0000100000000000:0000100000000000 Z07=0000000000000000:3fec423c71ff3f04 Z08=0000000000000000:3faef0cd8a949290 Z09=0000000000000000:3fe49539d480a4a6 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=000000000000000b:00000000a2b385d4 Z31=0000000000000000:0000000000000000