syzkaller login: [ 184.859929][ T2896] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 184.884868][ T2896] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 184.916778][ T2896] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 184.947086][ T2896] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. Warning: Permanently added '[localhost]:42342' (ECDSA) to the list of known hosts. 1970/01/01 00:03:33 fuzzer started 1970/01/01 00:03:42 dialing manager at localhost:33369 1970/01/01 00:03:45 syscalls: 2779 1970/01/01 00:03:45 code coverage: enabled 1970/01/01 00:03:45 comparison tracing: enabled 1970/01/01 00:03:45 extra coverage: enabled 1970/01/01 00:03:45 setuid sandbox: enabled 1970/01/01 00:03:45 namespace sandbox: enabled 1970/01/01 00:03:45 Android sandbox: /sys/fs/selinux/policy does not exist 1970/01/01 00:03:45 fault injection: enabled 1970/01/01 00:03:45 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 1970/01/01 00:03:45 net packet injection: enabled 1970/01/01 00:03:45 net device setup: enabled 1970/01/01 00:03:45 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 1970/01/01 00:03:45 devlink PCI setup: PCI device 0000:00:10.0 is not available 1970/01/01 00:03:45 USB emulation: enabled 1970/01/01 00:03:45 hci packet injection: /dev/vhci does not exist 1970/01/01 00:03:45 wifi device emulation: /sys/class/mac80211_hwsim/ does not exist 1970/01/01 00:03:45 802.15.4 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=0x8 pc=0x2e0564] goroutine 1 [running]: github.com/google/syzkaller/prog.(*ChoiceTable).Enabled(...) /syzkaller/gopath/src/github.com/google/syzkaller/prog/prio.go:239 main.(*Fuzzer).checkDisabledCalls(0x3fc009a820, 0x3fc02cfa80) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:469 +0x54 main.(*Fuzzer).deserializeInput(0x3fc009a820, 0x3fc017e840, 0x1c, 0x1c, 0x0) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:460 +0x118 main.(*Fuzzer).addCandidateInput(0x3fc009a820, 0x3fc017e840, 0x1c, 0x1c, 0x101) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:438 +0x44 main.(*Fuzzer).poll(0x3fc009a820, 0x3fc02cea01, 0x0, 0x3fc0010098) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:409 +0x414 main.main() /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:273 +0x1008 VM DIAGNOSIS: 12:21:01 Registers: info registers vcpu 0 pc ffffffe002a96eb2 mhartid 0000000000000000 mstatus 00000000000001a2 mip 0000000000000000 mie 00000000000002aa mideleg 0000000000000222 medeleg 000000000000b109 mtvec 0000000080000540 stvec ffffffe00000542c mepc ffffffe00000e9d4 sepc ffffffe000005500 mcause 0000000000000009 scause 8000000000000009 mtval 0000000000000000 stval 0000000000000000 x0/zero 0000000000000000 x1/ra ffffffe00000978a x2/sp ffffffe006b72e70 x3/gp ffffffe004588c00 x4/tp ffffffe0058597c0 x5/t0 ffffffc40171f15d x6/t1 0000000000000001 x7/t2 0000000000000000 x8/s0 ffffffe006b72e80 x9/s1 ffffffe006b73320 x10/a0 0000000000000000 x11/a1 00000000000f0000 x12/a2 0000000000000101 x13/a3 ffffffe000009784 x14/a4 0000000000000000 x15/a5 ffffffe006b72f6c x16/a6 0000000000f00000 x17/a7 c30073653b2d2200 x18/s2 000000000000000a x19/s3 0000000000000000 x20/s4 ffffffe00210e172 x21/s5 ffffffe006b73360 x22/s6 0000000000000000 x23/s7 ffffffe006b73400 x24/s8 ffffffe000117744 x25/s9 ffffffe006b72f60 x26/s10 0000000000003fff x27/s11 0000000000000001 x28/t3 c30073653b2d2200 x29/t4 ffffffc400fd358d x30/t5 ffffffc400fd358e x31/t6 ffffffe00b8f8a58 f0/ft0 0000000000000000 f1/ft1 40817712b96d60c7 f2/ft2 411f3dc000000000 f3/ft3 4150882100000000 f4/ft4 410b28b000000000 f5/ft5 4039fa2f045e7833 f6/ft6 0000000000000000 f7/ft7 0000000000000000 f8/fs0 0000000000000000 f9/fs1 0000000000000000 f10/fa0 0000000000000000 f11/fa1 0000000000000000 f12/fa2 0000000000000000 f13/fa3 0000000000000000 f14/fa4 0000000000000000 f15/fa5 0000000000000000 f16/fa6 0000000000000000 f17/fa7 0000000000000000 f18/fs2 0000000000000000 f19/fs3 0000000000000000 f20/fs4 0000000000000000 f21/fs5 0000000000000000 f22/fs6 0000000000000000 f23/fs7 0000000000000000 f24/fs8 0000000000000000 f25/fs9 0000000000000000 f26/fs10 0000000000000000 f27/fs11 0000000000000000 f28/ft8 0000000000000000 f29/ft9 0000000000000000 f30/ft10 0000000000000000 f31/ft11 0000000000000000 info registers vcpu 1 pc ffffffe0003f86a0 mhartid 0000000000000001 mstatus 00000000000000a2 mip 0000000000000000 mie 00000000000002aa mideleg 0000000000000222 medeleg 000000000000b109 mtvec 0000000080000540 stvec ffffffe00000542c mepc ffffffe00000e9d4 sepc 0000003fd4da1264 mcause 0000000000000009 scause 0000000000000008 mtval 0000000000000000 stval 0000000000000000 x0/zero 0000000000000000 x1/ra ffffffe002a9caba x2/sp ffffffe00639ba60 x3/gp ffffffe004588c00 x4/tp ffffffe00795df00 x5/t0 00000000000001f8 x6/t1 0000000000000001 x7/t2 ffffffffffffffff x8/s0 ffffffe00639ba50 x9/s1 ffffffe00795df00 x10/a0 0000000000000001 x11/a1 0000000000000007 x12/a2 1ffffffc00f2bd07 x13/a3 ffffffe002a9cacc x14/a4 0000000000000000 x15/a5 0000000000000001 x16/a6 0000000000f00000 x17/a7 c30073653b2d2200 x18/s2 0000000000000001 x19/s3 0000000000000000 x20/s4 ffffffe003698660 x21/s5 ffffffe002a96ed4 x22/s6 ffffffe00a782068 x23/s7 0000000000000000 x24/s8 0000000000000000 x25/s9 ffffffe00040c5c4 x26/s10 0000000000000000 x27/s11 ffffffe00795e8a8 x28/t3 c30073653b2d2200 x29/t4 0000000000000000 x30/t5 0000000002612067 x31/t6 0000000002b619b7 f0/ft0 0000000000000000 f1/ft1 0000000000000000 f2/ft2 0000000000000000 f3/ft3 0000000000000000 f4/ft4 0000000000000000 f5/ft5 0000000000000000 f6/ft6 0000000000000000 f7/ft7 0000000000000000 f8/fs0 0000000000000000 f9/fs1 0000000000000000 f10/fa0 0000000000000000 f11/fa1 0000000000000000 f12/fa2 0000000000000000 f13/fa3 0000000000000000 f14/fa4 0000000000000000 f15/fa5 0000000000000000 f16/fa6 0000000000000000 f17/fa7 0000000000000000 f18/fs2 0000000000000000 f19/fs3 0000000000000000 f20/fs4 0000000000000000 f21/fs5 0000000000000000 f22/fs6 0000000000000000 f23/fs7 0000000000000000 f24/fs8 0000000000000000 f25/fs9 0000000000000000 f26/fs10 0000000000000000 f27/fs11 0000000000000000 f28/ft8 0000000000000000 f29/ft9 0000000000000000 f30/ft10 0000000000000000 f31/ft11 0000000000000000