syzkaller login: [ 188.673142][ T2894] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 188.727761][ T2894] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 188.749002][ T2894] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 188.767554][ T2894] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. Warning: Permanently added '[localhost]:24611' (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(0x3fa0071040, 0x3fa0211180) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:469 +0x54 main.(*Fuzzer).deserializeInput(0x3fa0071040, 0x3fa016e000, 0xbc, 0xbc, 0x0) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:460 +0x118 main.(*Fuzzer).addCandidateInput(0x3fa0071040, 0x3fa016e000, 0xbc, 0xbc, 0x101) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:438 +0x44 main.(*Fuzzer).poll(0x3fa0071040, 0x3fa0210201, 0x0, 0x3fa00aca90) /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: 12:04:51 Registers: info registers vcpu 0 pc ffffffe002a96ed4 mhartid 0000000000000000 mstatus 00000000000000a0 mip 0000000000000000 mie 00000000000002aa mideleg 0000000000000222 medeleg 000000000000b109 mtvec 0000000080000540 stvec ffffffe00000542c mepc ffffffe00000e9d4 sepc ffffffe0003bee80 mcause 0000000000000009 scause 8000000000000009 mtval 0000000000000000 stval 0000000000000000 x0/zero 0000000000000000 x1/ra ffffffe0000c116c x2/sp ffffffe00a9ff8a0 x3/gp ffffffe004588c00 x4/tp ffffffe0079bdf00 x5/t0 ffffffc401527e80 x6/t1 0000000000000001 x7/t2 0000003fa0471a04 x8/s0 ffffffe00a9ffa60 x9/s1 ffffffe066d54f80 x10/a0 ffffffe066d54f88 x11/a1 0000000000000007 x12/a2 1ffffffc00a092b5 x13/a3 ffffffe0000a5bea x14/a4 0000000000000000 x15/a5 ffffffe0057b98b0 x16/a6 0000000000f00000 x17/a7 0000000000000043 x18/s2 ffffffe0057b9880 x19/s3 0000000000000000 x20/s4 0000000000000009 x21/s5 ffffffe066d54ec0 x22/s6 000000371a35671c x23/s7 0000000000000001 x24/s8 0000000000000020 x25/s9 ffffffe0057b9818 x26/s10 ffffffe0050495a8 x27/s11 0000000000000000 x28/t3 6ef98ed0e681dc00 x29/t4 0000003fa02d5550 x30/t5 0000003fa02d5549 x31/t6 0000000000081740 f0/ft0 0000000000000000 f1/ft1 407adac6892a9b66 f2/ft2 411a6ca000000000 f3/ft3 3f800fdce1998196 f4/ft4 3ff799999999999a f5/ft5 3fde666666666666 f6/ft6 3febfc664651cfd2 f7/ft7 3fd99266263d393e f8/fs0 3feae9f2b403da98 f9/fs1 3f9bf66eeeffa020 f10/fa0 3fd81a1b9d4f32ef 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 ffffffe0003bdde0 mhartid 0000000000000001 mstatus 00000000000000a0 mip 0000000000000000 mie 00000000000002aa mideleg 0000000000000222 medeleg 000000000000b109 mtvec 0000000080000540 stvec ffffffe00000542c mepc ffffffe00000e9d4 sepc 0000003fe6974844 mcause 0000000000000009 scause 0000000000000008 mtval 0000000000000000 stval 0000000000000000 x0/zero 0000000000000000 x1/ra ffffffe000095ac2 x2/sp ffffffe00b7efe30 x3/gp ffffffe004588c00 x4/tp ffffffe006dd8000 x5/t0 0000000000046000 x6/t1 0000000000000001 x7/t2 ffffffffffffffff x8/s0 ffffffe00b7efd90 x9/s1 ffffffe006dd89a8 x10/a0 0000000000000001 x11/a1 0000000000000003 x12/a2 1ffffffc00dbb134 x13/a3 ffffffe002a96d3e x14/a4 ffffffe006dd9000 x15/a5 0000000000000000 x16/a6 0000000000f00000 x17/a7 ffffffe002a96c58 x18/s2 0000000000000000 x19/s3 0000000000000000 x20/s4 ffffffe00458c0d0 x21/s5 ffffffe006dd86a8 x22/s6 ffffffe006dd86e0 x23/s7 000000000000005f x24/s8 0000000000000000 x25/s9 0000000000000004 x26/s10 0000003ffff8c2e8 x27/s11 0000000000000034 x28/t3 6ef98ed0e681dc00 x29/t4 0000000000000030 x30/t5 0000000000000010 x31/t6 75725b2031200000 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