syzkaller login: [ 180.919264][ T2894] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 180.977535][ T2894] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 181.000443][ T2894] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 181.019858][ T2894] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. Warning: Permanently added '[localhost]:4297' (ECDSA) to the list of known hosts. 1970/01/01 00:03:32 fuzzer started 1970/01/01 00:03:41 dialing manager at localhost:33369 1970/01/01 00:03:44 syscalls: 2779 1970/01/01 00:03:44 code coverage: enabled 1970/01/01 00:03:44 comparison tracing: enabled 1970/01/01 00:03:44 extra coverage: enabled 1970/01/01 00:03:44 setuid sandbox: enabled 1970/01/01 00:03:44 namespace sandbox: enabled 1970/01/01 00:03:44 Android sandbox: /sys/fs/selinux/policy does not exist 1970/01/01 00:03:44 fault injection: enabled 1970/01/01 00:03:44 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 1970/01/01 00:03:44 net packet injection: enabled 1970/01/01 00:03:44 net device setup: enabled 1970/01/01 00:03:44 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 1970/01/01 00:03:44 devlink PCI setup: PCI device 0000:00:10.0 is not available 1970/01/01 00:03:44 USB emulation: enabled 1970/01/01 00:03:44 hci packet injection: /dev/vhci does not exist 1970/01/01 00:03:44 wifi device emulation: /sys/class/mac80211_hwsim/ does not exist 1970/01/01 00:03:44 802.15.4 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(0x3f9c0a2820, 0x3f9c57a040) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:469 +0x54 main.(*Fuzzer).deserializeInput(0x3f9c0a2820, 0x3f9c0aa090, 0x8a, 0x8a, 0x0) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:460 +0x118 main.(*Fuzzer).addCandidateInput(0x3f9c0a2820, 0x3f9c0aa090, 0x8a, 0x8a, 0x101) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:438 +0x44 main.(*Fuzzer).poll(0x3f9c0a2820, 0x3f9c1b2d01, 0x0, 0x3f9c0105e0) /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: 12:21:09 Registers: info registers vcpu 0 pc ffffffe002aa2210 mhartid 0000000000000000 mstatus 00000000000001a0 mip 0000000000000000 mie 00000000000002aa mideleg 0000000000000222 medeleg 000000000000b109 mtvec 0000000080000540 stvec ffffffe00000542c mepc ffffffe00000e9d4 sepc ffffffe00011e01a mcause 0000000000000009 scause 8000000000000009 mtval 0000000000000000 stval 0000000000000000 x0/zero 0000000000000000 x1/ra ffffffe0000e4756 x2/sp ffffffe00ac17590 x3/gp ffffffe004588c00 x4/tp ffffffe00d71af80 x5/t0 ffffffe007d73040 x6/t1 0000000000000001 x7/t2 37d0da07aa5524ac x8/s0 ffffffe00ac17580 x9/s1 0000000000000120 x10/a0 0000000000000000 x11/a1 0000000000000003 x12/a2 0000000000000000 x13/a3 ffffffe0001d15c4 x14/a4 ffffffe00d71bf80 x15/a5 0000000000000000 x16/a6 0000000000f00000 x17/a7 ffffffe00250a868 x18/s2 ffffffe066d510a8 x19/s3 ffffffe0050495a8 x20/s4 ffffffe0050495a8 x21/s5 0000000000000000 x22/s6 9e26e5f98301c2f7 x23/s7 ffffffe00458c0d0 x24/s8 ffffffe008059de0 x25/s9 ffffffe00b1402ac x26/s10 0000000000001000 x27/s11 ffffffe008059de8 x28/t3 34e8af5ce8766d00 x29/t4 ffffffc400fae608 x30/t5 ffffffc400d3f304 x31/t6 ffffffe00758aac0 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 info registers vcpu 1 pc ffffffe00040e214 mhartid 0000000000000001 mstatus 00000000000000a2 mip 0000000000000000 mie 00000000000002aa mideleg 0000000000000222 medeleg 000000000000b109 mtvec 0000000080000540 stvec ffffffe00000542c mepc ffffffe00000e9d4 sepc 0000000000081ac8 mcause 0000000000000009 scause 0000000000000008 mtval 0000000000000000 stval 0000000000000000 x0/zero 0000000000000000 x1/ra ffffffe0000d02de x2/sp ffffffe00656ba40 x3/gp ffffffe004588c00 x4/tp ffffffe0071e8000 x5/t0 0000000000000001 x6/t1 0000000000000001 x7/t2 000000000000000a x8/s0 ffffffe00656bab0 x9/s1 ffffffe000125fbc x10/a0 ffffffe0071e8000 x11/a1 0000000000000007 x12/a2 0000000000000000 x13/a3 ffffffe00099be36 x14/a4 0000000000000003 x15/a5 0000000000000000 x16/a6 0000000000f00000 x17/a7 ffffffe0003f8b58 x18/s2 ffffffe002e350a8 x19/s3 ffffffe000125fbc x20/s4 ffffffe0050495a8 x21/s5 0000000000000000 x22/s6 0000000000000000 x23/s7 ffffffe00656bb50 x24/s8 0000000000001000 x25/s9 ffffffe00b339974 x26/s10 ffffffe008abd948 x27/s11 ffffffe00ae35680 x28/t3 34e8af5ce8766d00 x29/t4 ffffffc4016f180a x30/t5 ffffffc4016f180b x31/t6 0000000000040000 f0/ft0 0000000000000000 f1/ft1 40834b5e1431595b f2/ft2 41201d2000000000 f3/ft3 412fa33800000000 f4/ft4 4115025000000000 f5/ft5 40372118b119b4f4 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