syzkaller login: [ 193.004731][ T2895] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 193.072748][ T2895] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 193.138212][ T2895] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. [ 193.180509][ T2895] netlink: 4 bytes leftover after parsing attributes in process `dhcpcd'. Warning: Permanently added '[localhost]:30711' (ECDSA) to the list of known hosts. 1970/01/01 00:03:51 fuzzer started 1970/01/01 00:03:59 dialing manager at localhost:33369 1970/01/01 00:04:02 syscalls: 2779 1970/01/01 00:04:02 code coverage: enabled 1970/01/01 00:04:02 comparison tracing: enabled 1970/01/01 00:04:02 extra coverage: enabled 1970/01/01 00:04:02 setuid sandbox: enabled 1970/01/01 00:04:02 namespace sandbox: enabled 1970/01/01 00:04:02 Android sandbox: /sys/fs/selinux/policy does not exist 1970/01/01 00:04:02 fault injection: enabled 1970/01/01 00:04:02 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 1970/01/01 00:04:02 net packet injection: enabled 1970/01/01 00:04:02 net device setup: enabled 1970/01/01 00:04:02 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 1970/01/01 00:04:02 devlink PCI setup: PCI device 0000:00:10.0 is not available 1970/01/01 00:04:02 USB emulation: enabled 1970/01/01 00:04:02 hci packet injection: /dev/vhci does not exist 1970/01/01 00:04:02 wifi device emulation: /sys/class/mac80211_hwsim/ does not exist 1970/01/01 00:04:02 802.15.4 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(0x3f900649c0, 0x3f900523c0) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:469 +0x54 main.(*Fuzzer).deserializeInput(0x3f900649c0, 0x3f901c8060, 0x60, 0x60, 0x0) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:460 +0x118 main.(*Fuzzer).addCandidateInput(0x3f900649c0, 0x3f901c8060, 0x60, 0x60, 0x101) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:438 +0x44 main.(*Fuzzer).poll(0x3f900649c0, 0x3f900af901, 0x0, 0x3f900a8ba0) /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: 12:21:42 Registers: info registers vcpu 0 pc 0000000000081ac8 mhartid 0000000000000000 mstatus 00000000000040a2 mip 0000000000000000 mie 00000000000002aa mideleg 0000000000000222 medeleg 000000000000b109 mtvec 0000000080000540 stvec ffffffe00000542c mepc ffffffe00000e9d4 sepc 0000000000081acc mcause 0000000000000009 scause 0000000000000008 mtval 0000000000000000 stval 0000000000000000 x0/zero 0000000000000000 x1/ra 000000000004c748 x2/sp 0000003f9003b9e8 x3/gp 0000000000000046 x4/tp 0000003f90000900 x5/t0 0000000000000000 x6/t1 0000000000000001 x7/t2 0000000000000000 x8/s0 0000000000000000 x9/s1 0000000000000000 x10/a0 0000000000000002 x11/a1 00000000006d7f69 x12/a2 0000000000000046 x13/a3 0000000000000000 x14/a4 00000000006d7f69 x15/a5 0000000000000000 x16/a6 ffffffffffffffff x17/a7 0000000000000040 x18/s2 0000000000000002 x19/s3 0000000000000000 x20/s4 0000000000000000 x21/s5 0000000000000001 x22/s6 ffffffff80000000 x23/s7 00000000002e0564 x24/s8 0000000000000000 x25/s9 00000000002e0510 x26/s10 000000000073b100 x27/s11 00000000000000f3 x28/t3 0000000000000000 x29/t4 0000003f903c2bf0 x30/t5 0000003f903c2be9 x31/t6 0000000000081740 f0/ft0 0000000000000000 f1/ft1 408170526bf45a7c f2/ft2 411d490000000000 f3/ft3 4136f62000000000 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 info registers vcpu 1 pc ffffffe0001d10e4 mhartid 0000000000000001 mstatus 00000000000000a0 mip 0000000000000000 mie 00000000000002aa mideleg 0000000000000222 medeleg 000000000000b109 mtvec 0000000080000540 stvec ffffffe00000542c mepc ffffffe00000e9d4 sepc 0000003ff479a29c mcause 0000000000000009 scause 0000000000000008 mtval 0000000000000000 stval 0000000000000000 x0/zero 0000000000000000 x1/ra ffffffe000127020 x2/sp ffffffe00ed2bdf0 x3/gp ffffffe004588c00 x4/tp ffffffe0091217c0 x5/t0 0000000000000388 x6/t1 ffffffc401da57d4 x7/t2 ffffffffffffffff x8/s0 ffffffe00ed2be90 x9/s1 ffffffe00ed2be98 x10/a0 ffffffe00ed2be98 x11/a1 0000000000000007 x12/a2 0000000000000010 x13/a3 ffffffe000118020 x14/a4 ffffffe0091227c0 x15/a5 0000000000000000 x16/a6 0000000000f00000 x17/a7 ffffffe00ed2bea7 x18/s2 0000000000000000 x19/s3 ffffffe00432b290 x20/s4 ffffffe003698660 x21/s5 ffffffe002a96ed4 x22/s6 ffffffffffffffff x23/s7 0000000000000022 x24/s8 ffffffe0050495a8 x25/s9 0000002b0a9d6af0 x26/s10 ffffffffffffffff x27/s11 00000000ffffffff x28/t3 0ea0aa4e390a8e00 x29/t4 ffffffc401da57d3 x30/t5 ffffffc401da57d5 x31/t6 0000000001a80c10 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