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(0xc0005281a0, 0xc000404bc0) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:469 +0x68 main.(*Fuzzer).deserializeInput(0xc0005281a0, 0xc000548140, 0x128, 0x128, 0x0) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:460 +0x14c main.(*Fuzzer).addCandidateInput(0xc0005281a0, 0xc000548140, 0x128, 0x128, 0x101) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:438 +0x4d main.(*Fuzzer).poll(0xc0005281a0, 0xc000404001, 0x0, 0xc00040c130) /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 23:30:41.050238 588266 task_exit.go:221] [ 18] Transitioning from exit state TaskExitNone to TaskExitInitiated D0510 23:30:41.050268 588266 task_exit.go:221] [ 18] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:30:41.050273 588266 task_exit.go:221] [ 18] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:30:41.050287 588266 task_signals.go:189] [ 21] Signal 9: terminating thread group D0510 23:30:41.050296 588266 task_signals.go:189] [ 20] Signal 9: terminating thread group I0510 23:30:41.050298 588266 compat.go:135] Uncaught signal: "killed" (9), PID: 13, TID: 21, fault addr: 0x0 D0510 23:30:41.050324 588266 task_exit.go:221] [ 21] Transitioning from exit state TaskExitNone to TaskExitInitiated D0510 23:30:41.050331 588266 task_exit.go:221] [ 21] Transitioning from exit state TaskExitInitiated to TaskExitZombie I0510 23:30:41.050325 588266 compat.go:135] Uncaught signal: "killed" (9), PID: 13, TID: 20, fault addr: 0x0 D0510 23:30:41.050336 588266 task_exit.go:221] [ 21] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:30:41.050345 588266 task_signals.go:189] [ 13] Signal 9: terminating thread group D0510 23:30:41.050353 588266 task_signals.go:189] [ 26] Signal 9: terminating thread group I0510 23:30:41.050359 588266 compat.go:135] Uncaught signal: "killed" (9), PID: 13, TID: 13, fault addr: 0x0 D0510 23:30:41.050363 588266 task_signals.go:189] [ 16] Signal 9: terminating thread group D0510 23:30:41.050374 588266 task_exit.go:221] [ 13] Transitioning from exit state TaskExitNone to TaskExitInitiated I0510 23:30:41.050370 588266 compat.go:135] Uncaught signal: "killed" (9), PID: 13, TID: 26, fault addr: 0x0 D0510 23:30:41.050337 588266 task_signals.go:189] [ 24] Signal 9: terminating thread group D0510 23:30:41.050396 588266 task_signals.go:189] [ 23] Signal 9: terminating thread group D0510 23:30:41.050347 588266 task_signals.go:189] [ 25] Signal 9: terminating thread group D0510 23:30:41.050398 588266 task_signals.go:189] [ 27] Signal 9: terminating thread group D0510 23:30:41.050411 588266 task_signals.go:189] [ 17] Signal 9: terminating thread group I0510 23:30:41.050404 588266 compat.go:135] Uncaught signal: "killed" (9), PID: 13, TID: 16, fault addr: 0x0 D0510 23:30:41.050414 588266 task_signals.go:189] [ 14] Signal 9: terminating thread group D0510 23:30:41.050418 588266 task_exit.go:221] [ 26] Transitioning from exit state TaskExitNone to TaskExitInitiated D0510 23:30:41.050419 588266 task_signals.go:189] [ 15] Signal 9: terminating thread group I0510 23:30:41.050444 588266 compat.go:135] Uncaught signal: "killed" (9), PID: 13, TID: 27, fault addr: 0x0 D0510 23:30:41.050448 588266 task_signals.go:189] [ 22] Signal 9: terminating thread group I0510 23:30:41.050475 588266 compat.go:135] Uncaught signal: "killed" (9), PID: 13, TID: 24, fault addr: 0x0 D0510 23:30:41.050454 588266 task_signals.go:189] [ 19] Signal 9: terminating thread group I0510 23:30:41.050490 588266 compat.go:135] Uncaught signal: "killed" (9), PID: 13, TID: 25, fault addr: 0x0 D0510 23:30:41.050474 588266 task_exit.go:221] [ 26] Transitioning from exit state TaskExitInitiated to TaskExitZombie I0510 23:30:41.050497 588266 compat.go:135] Uncaught signal: "killed" (9), PID: 13, TID: 17, fault addr: 0x0 I0510 23:30:41.050503 588266 compat.go:135] Uncaught signal: "killed" (9), PID: 13, TID: 14, fault addr: 0x0 D0510 23:30:41.050500 588266 task_exit.go:221] [ 26] Transitioning from exit state TaskExitZombie to TaskExitDead I0510 23:30:41.050511 588266 compat.go:135] Uncaught signal: "killed" (9), PID: 13, TID: 23, fault addr: 0x0 I0510 23:30:41.050954 588266 compat.go:135] Uncaught signal: "killed" (9), PID: 13, TID: 15, fault addr: 0x0 I0510 23:30:41.051250 588266 compat.go:135] Uncaught signal: "killed" (9), PID: 13, TID: 19, fault addr: 0x0 D0510 23:30:41.051407 588266 task_exit.go:221] [ 23] Transitioning from exit state TaskExitNone to TaskExitInitiated D0510 23:30:41.051656 588266 task_exit.go:221] [ 13] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:30:41.051708 588266 task_exit.go:221] [ 20] Transitioning from exit state TaskExitNone to TaskExitInitiated D0510 23:30:41.051897 588266 task_exit.go:221] [ 16] Transitioning from exit state TaskExitNone to TaskExitInitiated D0510 23:30:41.051918 588266 task_exit.go:221] [ 16] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:30:41.051927 588266 task_exit.go:221] [ 16] Transitioning from exit state TaskExitZombie to TaskExitDead I0510 23:30:41.051699 588266 compat.go:135] Uncaught signal: "killed" (9), PID: 13, TID: 22, fault addr: 0x0 D0510 23:30:41.051965 588266 task_exit.go:221] [ 20] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:30:41.052016 588266 task_exit.go:221] [ 20] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:30:41.052449 588266 task_exit.go:221] [ 22] Transitioning from exit state TaskExitNone to TaskExitInitiated D0510 23:30:41.052497 588266 task_exit.go:221] [ 22] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:30:41.052504 588266 task_exit.go:221] [ 22] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:30:41.052529 588266 task_exit.go:221] [ 24] Transitioning from exit state TaskExitNone to TaskExitInitiated D0510 23:30:41.052565 588266 task_exit.go:221] [ 24] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:30:41.052572 588266 task_exit.go:221] [ 24] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:30:41.052580 588266 task_exit.go:221] [ 25] Transitioning from exit state TaskExitNone to TaskExitInitiated D0510 23:30:41.052588 588266 task_exit.go:221] [ 25] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:30:41.052593 588266 task_exit.go:221] [ 25] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:30:41.052602 588266 task_exit.go:221] [ 17] Transitioning from exit state TaskExitNone to TaskExitInitiated D0510 23:30:41.052617 588266 task_exit.go:221] [ 17] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:30:41.052622 588266 task_exit.go:221] [ 17] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:30:41.052630 588266 task_exit.go:221] [ 14] Transitioning from exit state TaskExitNone to TaskExitInitiated D0510 23:30:41.052638 588266 task_exit.go:221] [ 14] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:30:41.052643 588266 task_exit.go:221] [ 14] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:30:41.052651 588266 task_exit.go:221] [ 15] Transitioning from exit state TaskExitNone to TaskExitInitiated D0510 23:30:41.052665 588266 task_exit.go:221] [ 15] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:30:41.052669 588266 task_exit.go:221] [ 15] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:30:41.052677 588266 task_exit.go:221] [ 19] Transitioning from exit state TaskExitNone to TaskExitInitiated D0510 23:30:41.052684 588266 task_exit.go:221] [ 19] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:30:41.052689 588266 task_exit.go:221] [ 19] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:30:41.052696 588266 task_exit.go:221] [ 23] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:30:41.052702 588266 task_exit.go:221] [ 23] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:30:41.052709 588266 task_exit.go:221] [ 27] Transitioning from exit state TaskExitNone to TaskExitInitiated D0510 23:30:41.054906 588266 task_exit.go:221] [ 27] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:30:41.054936 588266 task_exit.go:221] [ 27] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:30:41.054941 588266 task_exit.go:221] [ 13] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:30:41.054957 588266 loader.go:1029] updated processes (removal): map[{ci-gvisor-ptrace-1-1 0}:0xc0003eb770] D0510 23:30:41.054984 588266 controller.go:506] containerManager.Wait, cid: ci-gvisor-ptrace-1-1, pid: 13, waitStatus: 0x200, err: D0510 23:30:41.055033 588266 urpc.go:551] urpc: successfully marshalled 38 bytes. D0510 23:30:41.055144 588346 urpc.go:594] urpc: unmarshal success. I0510 23:30:41.055211 588346 main.go:248] Exiting with status: 512 D0510 23:30:41.078444 588266 urpc.go:594] urpc: unmarshal success. D0510 23:30:41.078472 588266 controller.go:565] containerManager.Signal: cid: ci-gvisor-ptrace-1-1, PID: 0, signal: 0, mode: Process D0510 23:30:41.078620 588266 urpc.go:551] urpc: successfully marshalled 37 bytes. D0510 23:30:41.078980 588266 urpc.go:594] urpc: unmarshal success. D0510 23:30:41.081719 588266 urpc.go:551] urpc: successfully marshalled 92364 bytes. D0510 23:30:41.083041 588266 urpc.go:594] urpc: unmarshal success. D0510 23:30:41.083138 588266 controller.go:200] containerManager.Processes, cid: ci-gvisor-ptrace-1-1 D0510 23:30:41.083230 588266 urpc.go:551] urpc: successfully marshalled 162 bytes. I0510 23:30:41.487577 588266 calibrated_clock.go:74] CalibratedClock(Monotonic): ready I0510 23:30:41.487706 588266 calibrated_clock.go:74] CalibratedClock(Realtime): ready D0510 23:30:48.487524 588266 sampler.go:197] Time: Adjusting syscall overhead down to 875