syzkaller login: [ 72.945998][ T3140] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 72.950492][ T3140] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 72.958375][ T3140] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. Warning: Permanently added '[localhost]:24837' (ECDSA) to the list of known hosts. 1970/01/01 00:01:20 fuzzer started 1970/01/01 00:01:23 dialing manager at localhost:45771 1970/01/01 00:01:24 syscalls: 2894 1970/01/01 00:01:24 code coverage: CONFIG_KCOV is not enabled 1970/01/01 00:01:24 comparison tracing: CONFIG_KCOV is not enabled 1970/01/01 00:01:24 extra coverage: CONFIG_KCOV is not enabled 1970/01/01 00:01:24 setuid sandbox: enabled 1970/01/01 00:01:24 namespace sandbox: enabled 1970/01/01 00:01:24 Android sandbox: /sys/fs/selinux/policy does not exist 1970/01/01 00:01:24 fault injection: enabled 1970/01/01 00:01:24 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 1970/01/01 00:01:24 net packet injection: enabled 1970/01/01 00:01:24 net device setup: enabled 1970/01/01 00:01:24 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 1970/01/01 00:01:24 devlink PCI setup: PCI device 0000:00:10.0 is not available 1970/01/01 00:01:24 USB emulation: enabled 1970/01/01 00:01:24 hci packet injection: /dev/vhci does not exist 1970/01/01 00:01:24 wifi device emulation: /sys/class/mac80211_hwsim/ does not exist 1970/01/01 00:01:24 802.15.4 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(0x400009a9c0, 0x400007f140) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:469 +0x58 main.(*Fuzzer).deserializeInput(0x400009a9c0, 0x40002901c0, 0xd9, 0xd9, 0x0) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:460 +0xf8 main.(*Fuzzer).addCandidateInput(0x400009a9c0, 0x40002901c0, 0xd9, 0xd9, 0x101) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:438 +0x40 main.(*Fuzzer).poll(0x400009a9c0, 0x40002ab701, 0x0, 0x4000080078) /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: 12:25:40 Registers: info registers vcpu 0 PC=ffff8000101270e0 X00=000000000000001a X01=ffff8000100034a0 X02=ffffffffffffffff X03=ffff800012934000 X04=94f28000100127f8 X05=0000000000000002 X06=0000000000000002 X07=0000000000000001 X08=ffff80001000342c X09=0000000079548ea5 X10=000000000000000c X11=fbff000003400260 X12=0000000000000040 X13=0000000000000000 X14=0000000000000000 X15=0000000000000000 X16=0000000000000000 X17=0000000000000000 X18=0000000000000000 X19=0000000000000000 X20=ffff800012996798 X21=0000000000000000 X22=ffff00007b620000 X23=ffff800012992000 X24=ffff800012996778 X25=ffff00007b620e00 X26=ffff00007b620000 X27=ffff800012992610 X28=f5ff000003147400 X29=ffff8000100034e0 X30=ffff800010227cb4 SP=ffff8000100034d0 PSTATE=804000c9 N--- 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=039f02c003a00502:0063696e61706f67 Z02=010191028c01b200:05039f019d03a001 Z03=0000000000000000:4000000000000000 Z04=0000000000000001:0000000000000000 Z05=4010040140100401:4010040140100401 Z06=0001000000004000:0001000000004000 Z07=676e7220746e6972:6620326d67616c66 Z08=ffffffffffffffff:ffffffffffffffff Z09=ffffffffffffffff:ffffffffffffffff Z10=ffffffffffffffff:ffffffffffffffff Z11=ffffffffffffffff:ffffffffffffffff Z12=0000000000000000:d66b2ba1821ab0f0 Z13=0000000000000000:af8cbcc4e8c009ff Z14=0000000000000000:e51f1d2ab93db38f Z15=0000000000000000:06990b93f1c590ca 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=000000000000001b:00000000852cc990 Z31=0000000000000000:0000000000000000 info registers vcpu 1 PC=ffff8000100f5020 X00=0000000000000101 X01=0000000000000000 X02=0000000000000001 X03=faff000006180948 X04=0000000000000001 X05=ffff800012d2bd10 X06=ffff800000000005 X07=0000000000000000 X08=0000000000000000 X09=0000000000000000 X10=0000000000000000 X11=0000000000000000 X12=0000000000000000 X13=0000000000000000 X14=0000000000000000 X15=0000000000000000 X16=0000000000000000 X17=0000000000000000 X18=0000000000000000 X19=faff0000061808c0 X20=faff000006180948 X21=000000000000004c X22=0000000000000000 X23=ffffffffffffffea X24=0000000000000000 X25=0000000000000000 X26=0000000000000000 X27=0000000000000000 X28=fcff00000312eac0 X29=ffff800012d2bba0 X30=ffff800011717734 SP=ffff800012d2bba0 PSTATE=00400009 ---- 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=d6bc1135ed3cc183:0ab1fc2b10c76756 Z02=8fd6cd591cb84532:a423036f0b7730ac Z03=68edfef95de886ad:d2bba6b011214e1f Z04=5c973d6fbd648062:c1661ec3a21c7d89 Z05=e2fe1a408eeead76:9543868aca055ea4 Z06=db356da2152bf58c:7a7affc8c752716d Z07=043c4530b56ebb09:5893674a37883da0 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=7213a50e16a2e124:7eb6659347c270da Z17=3fff9bc9dc8403d1:46fe59c13cb2031e Z18=a5d18572bf397147:6e873496d522dbfa Z19=0cb0264f7f289b8b:900f6d42cf8746b9 Z20=400ea7d264437656:c49f2826e9e72e8b Z21=dd8123c07a5bfa68:abe28bfea6fc51a0 Z22=d0667d098d15fd6b:607db6ab145fc747 Z23=4f6dca887613d751:5f82a20fdbebbec5 Z24=6b20657479622d32:3320646e61707865 Z25=b500e6039da8ae21:171ab63709737e36 Z26=5c9ed3be02b20186:2682377ae4743a31 Z27=2c00000000000000:0000000000000006 Z28=2c00000000000000:0000000000000007 Z29=2c00000000000000:0000000000000008 Z30=2b00000000000000:000000000000000e Z31=0000000000000000:0000000000000004