panic: runtime error: invalid memory address or nil pointer dereference [signal SIGSEGV: segmentation violation code=0x1 addr=0x10 pc=0x6e01c8] goroutine 1 [running]: github.com/google/syzkaller/prog.(*ChoiceTable).Enabled(...) /syzkaller/gopath/src/github.com/google/syzkaller/prog/prio.go:239 main.(*Fuzzer).checkDisabledCalls(0xc00042cb60, 0xc000146a00) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:469 +0x68 main.(*Fuzzer).deserializeInput(0xc00042cb60, 0xc000640070, 0x6b, 0x6b, 0x0) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:460 +0x14c main.(*Fuzzer).addCandidateInput(0xc00042cb60, 0xc000640070, 0x6b, 0x6b, 0x101) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:438 +0x4d main.(*Fuzzer).poll(0xc00042cb60, 0xc0001bde01, 0x0, 0xc000500620) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:409 +0x4d4 main.main() /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:273 +0x1271 D0510 23:29:04.459659 574995 task_signals.go:189] [ 24] Signal 9: terminating thread group D0510 23:29:04.459638 574995 task_signals.go:189] [ 20] Signal 9: terminating thread group D0510 23:29:04.459750 574995 task_exit.go:221] [ 23] Transitioning from exit state TaskExitNone to TaskExitInitiated D0510 23:29:04.459703 574995 task_signals.go:189] [ 28] Signal 9: terminating thread group D0510 23:29:04.459742 574995 task_signals.go:189] [ 27] Signal 9: terminating thread group D0510 23:29:04.459927 574995 task_signals.go:189] [ 17] Signal 9: terminating thread group D0510 23:29:04.460005 574995 task_signals.go:189] [ 19] Signal 9: terminating thread group I0510 23:29:04.459886 574995 compat.go:135] Uncaught signal: "killed" (9), PID: 14, TID: 27, fault addr: 0x0 D0510 23:29:04.460059 574995 task_exit.go:221] [ 23] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:29:04.460128 574995 task_exit.go:221] [ 23] Transitioning from exit state TaskExitZombie to TaskExitDead I0510 23:29:04.460125 574995 compat.go:135] Uncaught signal: "killed" (9), PID: 14, TID: 24, fault addr: 0x0 D0510 23:29:04.460083 574995 task_signals.go:189] [ 15] Signal 9: terminating thread group D0510 23:29:04.460198 574995 task_signals.go:189] [ 16] Signal 9: terminating thread group D0510 23:29:04.460263 574995 task_exit.go:221] [ 24] Transitioning from exit state TaskExitNone to TaskExitInitiated I0510 23:29:04.460319 574995 compat.go:135] Uncaught signal: "killed" (9), PID: 14, TID: 28, fault addr: 0x0 D0510 23:29:04.460492 574995 task_signals.go:189] [ 21] Signal 9: terminating thread group D0510 23:29:04.460575 574995 task_signals.go:189] [ 18] Signal 9: terminating thread group I0510 23:29:04.460607 574995 compat.go:135] Uncaught signal: "killed" (9), PID: 14, TID: 20, fault addr: 0x0 D0510 23:29:04.460636 574995 task_exit.go:221] [ 27] Transitioning from exit state TaskExitNone to TaskExitInitiated D0510 23:29:04.460622 574995 task_signals.go:189] [ 14] Signal 9: terminating thread group I0510 23:29:04.460763 574995 compat.go:135] Uncaught signal: "killed" (9), PID: 14, TID: 17, fault addr: 0x0 D0510 23:29:04.460808 574995 task_signals.go:189] [ 22] Signal 9: terminating thread group D0510 23:29:04.460800 574995 task_signals.go:189] [ 26] Signal 9: terminating thread group D0510 23:29:04.460875 574995 task_signals.go:189] [ 25] Signal 9: terminating thread group I0510 23:29:04.460857 574995 compat.go:135] Uncaught signal: "killed" (9), PID: 14, TID: 18, fault addr: 0x0 D0510 23:29:04.460925 574995 task_exit.go:221] [ 17] Transitioning from exit state TaskExitNone to TaskExitInitiated I0510 23:29:04.461041 574995 compat.go:135] Uncaught signal: "killed" (9), PID: 14, TID: 19, fault addr: 0x0 D0510 23:29:04.461167 574995 task_exit.go:221] [ 19] Transitioning from exit state TaskExitNone to TaskExitInitiated I0510 23:29:04.461133 574995 compat.go:135] Uncaught signal: "killed" (9), PID: 14, TID: 16, fault addr: 0x0 I0510 23:29:04.461343 574995 compat.go:135] Uncaught signal: "killed" (9), PID: 14, TID: 14, fault addr: 0x0 D0510 23:29:04.461420 574995 task_exit.go:221] [ 19] Transitioning from exit state TaskExitInitiated to TaskExitZombie I0510 23:29:04.461452 574995 compat.go:135] Uncaught signal: "killed" (9), PID: 14, TID: 22, fault addr: 0x0 I0510 23:29:04.461653 574995 compat.go:135] Uncaught signal: "killed" (9), PID: 14, TID: 21, fault addr: 0x0 D0510 23:29:04.461531 574995 task_exit.go:221] [ 19] Transitioning from exit state TaskExitZombie to TaskExitDead I0510 23:29:04.461748 574995 compat.go:135] Uncaught signal: "killed" (9), PID: 14, TID: 26, fault addr: 0x0 D0510 23:29:04.461862 574995 task_exit.go:221] [ 26] Transitioning from exit state TaskExitNone to TaskExitInitiated I0510 23:29:04.461946 574995 compat.go:135] Uncaught signal: "killed" (9), PID: 14, TID: 25, fault addr: 0x0 D0510 23:29:04.461993 574995 task_exit.go:221] [ 26] Transitioning from exit state TaskExitInitiated to TaskExitZombie I0510 23:29:04.462087 574995 compat.go:135] Uncaught signal: "killed" (9), PID: 14, TID: 15, fault addr: 0x0 D0510 23:29:04.462121 574995 task_exit.go:221] [ 26] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:29:04.462297 574995 task_exit.go:221] [ 28] Transitioning from exit state TaskExitNone to TaskExitInitiated D0510 23:29:04.462386 574995 task_exit.go:221] [ 14] Transitioning from exit state TaskExitNone to TaskExitInitiated D0510 23:29:04.462537 574995 task_exit.go:221] [ 14] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:29:04.462614 574995 task_exit.go:221] [ 16] Transitioning from exit state TaskExitNone to TaskExitInitiated D0510 23:29:04.462744 574995 task_exit.go:221] [ 20] Transitioning from exit state TaskExitNone to TaskExitInitiated D0510 23:29:04.462859 574995 task_exit.go:221] [ 18] Transitioning from exit state TaskExitNone to TaskExitInitiated D0510 23:29:04.462974 574995 task_exit.go:221] [ 22] Transitioning from exit state TaskExitNone to TaskExitInitiated D0510 23:29:04.463081 574995 task_exit.go:221] [ 21] Transitioning from exit state TaskExitNone to TaskExitInitiated D0510 23:29:04.463185 574995 task_exit.go:221] [ 25] Transitioning from exit state TaskExitNone to TaskExitInitiated D0510 23:29:04.463289 574995 task_exit.go:221] [ 15] Transitioning from exit state TaskExitNone to TaskExitInitiated D0510 23:29:04.463434 574995 task_exit.go:221] [ 28] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:29:04.463529 574995 task_exit.go:221] [ 28] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:29:04.463798 574995 task_exit.go:221] [ 24] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:29:04.463897 574995 task_exit.go:221] [ 24] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:29:04.464072 574995 task_exit.go:221] [ 27] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:29:04.464154 574995 task_exit.go:221] [ 27] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:29:04.464352 574995 task_exit.go:221] [ 20] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:29:04.464432 574995 task_exit.go:221] [ 20] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:29:04.464715 574995 task_exit.go:221] [ 22] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:29:04.464788 574995 task_exit.go:221] [ 22] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:29:04.464930 574995 task_exit.go:221] [ 15] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:29:04.464984 574995 task_exit.go:221] [ 15] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:29:04.465175 574995 task_exit.go:221] [ 21] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:29:04.465236 574995 task_exit.go:221] [ 21] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:29:04.465410 574995 task_exit.go:221] [ 17] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:29:04.465489 574995 task_exit.go:221] [ 17] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:29:04.465694 574995 task_exit.go:221] [ 25] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:29:04.465811 574995 task_exit.go:221] [ 25] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:29:04.465944 574995 task_exit.go:221] [ 16] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:29:04.466029 574995 task_exit.go:221] [ 16] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:29:04.470521 574995 task_exit.go:221] [ 18] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:29:04.470642 574995 task_exit.go:221] [ 18] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:29:04.470889 574995 task_exit.go:221] [ 14] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:29:04.471097 574995 loader.go:1029] updated processes (removal): map[{ci-gvisor-ptrace-1-race-1 0}:0xc000488300] D0510 23:29:04.471198 574995 controller.go:506] containerManager.Wait, cid: ci-gvisor-ptrace-1-race-1, pid: 14, waitStatus: 0x200, err: D0510 23:29:04.471469 574995 urpc.go:551] urpc: successfully marshalled 38 bytes. D0510 23:29:04.471692 575159 urpc.go:594] urpc: unmarshal success. I0510 23:29:04.471864 575159 main.go:248] Exiting with status: 512 D0510 23:29:04.519309 574995 urpc.go:594] urpc: unmarshal success. D0510 23:29:04.519490 574995 controller.go:565] containerManager.Signal: cid: ci-gvisor-ptrace-1-race-1, PID: 0, signal: 0, mode: Process D0510 23:29:04.519712 574995 urpc.go:551] urpc: successfully marshalled 37 bytes. D0510 23:29:04.520626 574995 urpc.go:594] urpc: unmarshal success. D0510 23:29:04.531817 574995 urpc.go:551] urpc: successfully marshalled 98876 bytes. D0510 23:29:04.565901 574995 urpc.go:594] urpc: unmarshal success. D0510 23:29:04.566131 574995 controller.go:200] containerManager.Processes, cid: ci-gvisor-ptrace-1-race-1 D0510 23:29:04.566750 574995 urpc.go:551] urpc: successfully marshalled 166 bytes. I0510 23:29:04.613527 574995 calibrated_clock.go:74] CalibratedClock(Monotonic): ready I0510 23:29:04.613674 574995 calibrated_clock.go:74] CalibratedClock(Realtime): ready