syzkaller login: [ 189.690616][ T2896] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 189.731940][ T2896] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 189.787112][ T2896] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 189.813374][ T2896] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. Warning: Permanently added '[localhost]:17652' (ECDSA) to the list of known hosts. 1970/01/01 00:03:44 fuzzer started 1970/01/01 00:03:52 dialing manager at localhost:33369 1970/01/01 00:03:55 syscalls: 2779 1970/01/01 00:03:55 code coverage: enabled 1970/01/01 00:03:55 comparison tracing: enabled 1970/01/01 00:03:55 extra coverage: enabled 1970/01/01 00:03:55 setuid sandbox: enabled 1970/01/01 00:03:55 namespace sandbox: enabled 1970/01/01 00:03:55 Android sandbox: /sys/fs/selinux/policy does not exist 1970/01/01 00:03:55 fault injection: enabled 1970/01/01 00:03:55 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 1970/01/01 00:03:55 net packet injection: enabled 1970/01/01 00:03:55 net device setup: enabled 1970/01/01 00:03:55 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 1970/01/01 00:03:55 devlink PCI setup: PCI device 0000:00:10.0 is not available 1970/01/01 00:03:55 USB emulation: enabled 1970/01/01 00:03:55 hci packet injection: /dev/vhci does not exist 1970/01/01 00:03:55 wifi device emulation: /sys/class/mac80211_hwsim/ does not exist 1970/01/01 00:03:55 802.15.4 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(0x3fb00ed6c0, 0x3fb0483440) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:469 +0x54 main.(*Fuzzer).deserializeInput(0x3fb00ed6c0, 0x3fb018a140, 0x136, 0x136, 0x0) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:460 +0x118 main.(*Fuzzer).addCandidateInput(0x3fb00ed6c0, 0x3fb018a140, 0x136, 0x136, 0x101) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:438 +0x44 main.(*Fuzzer).poll(0x3fb00ed6c0, 0x3fb0482a01, 0x0, 0x3fb016ea80) /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: 12:03:48 Registers: info registers vcpu 0 pc ffffffe0003bdee0 mhartid 0000000000000000 mstatus 00000000000000a2 mip 0000000000000000 mie 00000000000002aa mideleg 0000000000000222 medeleg 000000000000b109 mtvec 0000000080000540 stvec ffffffe00000542c mepc ffffffe00000e9d4 sepc 0000003fc50d7a20 mcause 0000000000000009 scause 0000000000000008 mtval 0000000000000000 stval 0000000000000000 x0/zero 0000000000000000 x1/ra ffffffe0000d3876 x2/sp ffffffe00811fa40 x3/gp ffffffe004588c00 x4/tp ffffffe00bb15f00 x5/t0 0000002b13040470 x6/t1 0000000000000001 x7/t2 0000000000002b98 x8/s0 ffffffe00811fb20 x9/s1 0000000000001fff x10/a0 ffffffe00459e598 x11/a1 0000000000000007 x12/a2 1ffffffc008b3cb3 x13/a3 ffffffe0000d02de x14/a4 0000000000000000 x15/a5 0000000000030000 x16/a6 0000000000000000 x17/a7 ffffffe0003301e6 x18/s2 0000000000010000 x19/s3 ffffffe00459e598 x20/s4 ffffffe004cbec00 x21/s5 ffffffe00bb168a0 x22/s6 fffffffffffffffe x23/s7 ffffffe00bb15f00 x24/s8 00000000000020d9 x25/s9 0000000000000001 x26/s10 ffffffe00459e580 x27/s11 ffffffe00bb168a8 x28/t3 4c2eb5f7c4e93c00 x29/t4 ffffffc401023f99 x30/t5 ffffffc401023f9a 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 info registers vcpu 1 pc ffffffe0024da1a2 mhartid 0000000000000001 mstatus 00000000000000a2 mip 0000000000000000 mie 00000000000002aa mideleg 0000000000000222 medeleg 000000000000b109 mtvec 0000000080000540 stvec ffffffe00000542c mepc ffffffe00000e9d4 sepc 000000000006be1c mcause 0000000000000009 scause 8000000000000009 mtval 0000000000000000 stval 0000000000000000 x0/zero 0000000000000000 x1/ra ffffffe0001a2e2a x2/sp ffffffe00e29f270 x3/gp ffffffe004588c00 x4/tp ffffffe0073c4740 x5/t0 ffffffe00dcebe00 x6/t1 ffffffc401b3e29d x7/t2 00000000006db034 x8/s0 ffffffe00e29f2a0 x9/s1 ffffffe0073c4740 x10/a0 0000000000000003 x11/a1 00000000000f0000 x12/a2 0000000000000101 x13/a3 ffffffe0024d8da4 x14/a4 0000000000000003 x15/a5 00000000000003e7 x16/a6 0000000000f00000 x17/a7 ffffffe00d9f14ee x18/s2 ffffffe00674e280 x19/s3 ffffffe00d9f1bc0 x20/s4 0000000000000000 x21/s5 0000000000000001 x22/s6 ffffffffa651752b x23/s7 0000000000000001 x24/s8 ffffffe00674e2ac x25/s9 0000000000000000 x26/s10 ffffffe00674e2a8 x27/s11 ffffffe00674e2b5 x28/t3 4c2eb5f7c4e93c00 x29/t4 ffffffc401b3e29d x30/t5 ffffffc401b3e29e x31/t6 ffffffe00dcebe18 f0/ft0 0000000000000000 f1/ft1 407f75e13cca88aa f2/ft2 411ae18000000000 f3/ft3 4133909800000000 f4/ft4 3ff0000000000000 f5/ft5 4000000000000000 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