syzkaller login: [ 187.614663][ T2895] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 187.666831][ T2895] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 187.730160][ T2895] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 187.760506][ T2895] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 187.778409][ T2895] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. Warning: Permanently added '[localhost]:62630' (ECDSA) to the list of known hosts. 1970/01/01 00:03:45 fuzzer started 1970/01/01 00:03:53 dialing manager at localhost:33369 1970/01/01 00:03:56 syscalls: 2779 1970/01/01 00:03:56 code coverage: enabled 1970/01/01 00:03:56 comparison tracing: enabled 1970/01/01 00:03:56 extra coverage: enabled 1970/01/01 00:03:56 setuid sandbox: enabled 1970/01/01 00:03:56 namespace sandbox: enabled 1970/01/01 00:03:56 Android sandbox: /sys/fs/selinux/policy does not exist 1970/01/01 00:03:56 fault injection: enabled 1970/01/01 00:03:56 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 1970/01/01 00:03:56 net packet injection: enabled 1970/01/01 00:03:56 net device setup: enabled 1970/01/01 00:03:56 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 1970/01/01 00:03:56 devlink PCI setup: PCI device 0000:00:10.0 is not available 1970/01/01 00:03:56 USB emulation: enabled 1970/01/01 00:03:56 hci packet injection: /dev/vhci does not exist 1970/01/01 00:03:56 wifi device emulation: /sys/class/mac80211_hwsim/ does not exist 1970/01/01 00:03:56 802.15.4 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(0x3fb40c0340, 0x3fb4224e00) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:469 +0x54 main.(*Fuzzer).deserializeInput(0x3fb40c0340, 0x3fb4228140, 0x12e, 0x12e, 0x0) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:460 +0x118 main.(*Fuzzer).addCandidateInput(0x3fb40c0340, 0x3fb4228140, 0x12e, 0x12e, 0x101) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:438 +0x44 main.(*Fuzzer).poll(0x3fb40c0340, 0x3fb406ee01, 0x0, 0x3fb409e0d0) /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: 12:17:55 Registers: info registers vcpu 0 pc ffffffe002a96ed4 mhartid 0000000000000000 mstatus 00000000000001a0 mip 0000000000000000 mie 00000000000002aa mideleg 0000000000000222 medeleg 000000000000b109 mtvec 0000000080000540 stvec ffffffe00000542c mepc ffffffe00000e9d4 sepc ffffffe0000d38f8 mcause 0000000000000009 scause 8000000000000009 mtval 0000000000000000 stval 0000000000000000 x0/zero 0000000000000000 x1/ra ffffffe0027db864 x2/sp ffffffe005fc7270 x3/gp ffffffe004588c00 x4/tp ffffffe0071ac740 x5/t0 ffffffe00b6d72e0 x6/t1 0000000000000806 x7/t2 0000000000000000 x8/s0 ffffffe005fc7300 x9/s1 ffffffe00d93e780 x10/a0 ffffffe00d93e780 x11/a1 00000000000f0000 x12/a2 0000000000000101 x13/a3 ffffffe00210e50c x14/a4 ffffffe0071ac740 x15/a5 ffffffe00d93e85c x16/a6 0000000000f00000 x17/a7 ffffffe00b6d704f x18/s2 0000000000000001 x19/s3 ffffffe00d93e85c x20/s4 0000000000000002 x21/s5 ffffffe0069fe000 x22/s6 ffffffe00d93e800 x23/s7 ffffffe0069fe000 x24/s8 ffffffe005fc7418 x25/s9 0000000000000000 x26/s10 ffffffe002e39f28 x27/s11 0000000000000000 x28/t3 6b4e12fe6eb8e700 x29/t4 ffffffc4016dae09 x30/t5 ffffffc4016dae0a x31/t6 ffffffe00b6d7078 f0/ft0 0000000000000000 f1/ft1 0000000000000000 f2/ft2 4121d5a000000000 f3/ft3 418f799ae0000000 f4/ft4 412fe9a000000000 f5/ft5 4037f446359b1354 f6/ft6 3fee0036c5844418 f7/ft7 3fdd9a0724a221ca f8/fs0 3feb988af6ecc599 f9/fs1 3fb7130388a6ae48 f10/fa0 3fd8a084c499aa4c 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 ffffffe0000c9c58 mhartid 0000000000000001 mstatus 00000000000001a0 mip 00000000000000a0 mie 000000000000020a mideleg 0000000000000222 medeleg 000000000000b109 mtvec 0000000080000540 stvec ffffffe00000542c mepc ffffffe0004281b6 sepc ffffffe0004281b6 mcause 8000000000000007 scause 8000000000000005 mtval 0000000000000000 stval 0000000000000000 x0/zero 0000000000000000 x1/ra ffffffe002a96146 x2/sp ffffffe00af9b620 x3/gp ffffffe004588c00 x4/tp ffffffe009a32f80 x5/t0 0000000000046000 x6/t1 0000000000000001 x7/t2 0000000000000000 x8/s0 ffffffe00af9b630 x9/s1 0000000000001000 x10/a0 0000000000000120 x11/a1 ffffffffffffffff x12/a2 1ffffffc013465f1 x13/a3 ffffffe000100944 x14/a4 0000000000010001 x15/a5 0000000000000000 x16/a6 0000000000f00000 x17/a7 ffffffe00013c15a x18/s2 ffffffe00458c228 x19/s3 ffffffe00432b2b8 x20/s4 00000000000050b8 x21/s5 ffffffe002e27840 x22/s6 ffffffffffffffff x23/s7 ffffffe00458c0d0 x24/s8 ffffffe0050495a8 x25/s9 ffffffe066d72c18 x26/s10 ffffffe00432b980 x27/s11 ffffffe009a32f80 x28/t3 6b4e12fe6eb8e700 x29/t4 ffffffc4015f37cb x30/t5 ffffffc4015f37cd x31/t6 0000000000040000 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