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(0xc0001b4340, 0xc00069b100) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:469 +0x68 main.(*Fuzzer).deserializeInput(0xc0001b4340, 0xc0008b8070, 0x6f, 0x6f, 0x0) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:460 +0x14c main.(*Fuzzer).addCandidateInput(0xc0001b4340, 0xc0008b8070, 0x6f, 0x6f, 0x101) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:438 +0x4d main.(*Fuzzer).poll(0xc0001b4340, 0xc00069a701, 0x0, 0xc00048c1a0) /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 23:29:04.881769 575144 task_signals.go:189] [ 16] Signal 9: terminating thread group D0510 23:29:04.881878 575144 task_signals.go:189] [ 18] Signal 9: terminating thread group D0510 23:29:04.881982 575144 task_signals.go:189] [ 27] Signal 9: terminating thread group D0510 23:29:04.882026 575144 task_signals.go:189] [ 22] Signal 9: terminating thread group D0510 23:29:04.882074 575144 task_signals.go:189] [ 19] Signal 9: terminating thread group D0510 23:29:04.882119 575144 task_signals.go:189] [ 14] Signal 9: terminating thread group D0510 23:29:04.882169 575144 task_signals.go:189] [ 13] Signal 9: terminating thread group D0510 23:29:04.882206 575144 task_signals.go:189] [ 17] Signal 9: terminating thread group D0510 23:29:04.882256 575144 task_signals.go:189] [ 15] Signal 9: terminating thread group D0510 23:29:04.882280 575144 task_signals.go:189] [ 21] Signal 9: terminating thread group D0510 23:29:04.882333 575144 task_exit.go:221] [ 24] Transitioning from exit state TaskExitNone to TaskExitInitiated I0510 23:29:04.882463 575144 compat.go:135] Uncaught signal: "killed" (9), PID: 13, TID: 17, fault addr: 0x0 D0510 23:29:04.882585 575144 task_signals.go:189] [ 20] Signal 9: terminating thread group D0510 23:29:04.882631 575144 task_signals.go:189] [ 26] Signal 9: terminating thread group I0510 23:29:04.882582 575144 compat.go:135] Uncaught signal: "killed" (9), PID: 13, TID: 18, fault addr: 0x0 D0510 23:29:04.882666 575144 task_signals.go:189] [ 23] Signal 9: terminating thread group D0510 23:29:04.882698 575144 task_signals.go:189] [ 25] Signal 9: terminating thread group D0510 23:29:04.882759 575144 task_exit.go:221] [ 24] Transitioning from exit state TaskExitInitiated to TaskExitZombie I0510 23:29:04.882723 575144 compat.go:135] Uncaught signal: "killed" (9), PID: 13, TID: 26, fault addr: 0x0 D0510 23:29:04.882837 575144 task_exit.go:221] [ 24] Transitioning from exit state TaskExitZombie to TaskExitDead I0510 23:29:04.883002 575144 compat.go:135] Uncaught signal: "killed" (9), PID: 13, TID: 16, fault addr: 0x0 D0510 23:29:04.883077 575144 task_exit.go:221] [ 18] Transitioning from exit state TaskExitNone to TaskExitInitiated I0510 23:29:04.883138 575144 compat.go:135] Uncaught signal: "killed" (9), PID: 13, TID: 13, fault addr: 0x0 D0510 23:29:04.883250 575144 task_exit.go:221] [ 13] Transitioning from exit state TaskExitNone to TaskExitInitiated D0510 23:29:04.883360 575144 task_exit.go:221] [ 13] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:29:04.883472 575144 task_exit.go:221] [ 16] Transitioning from exit state TaskExitNone to TaskExitInitiated I0510 23:29:04.883246 575144 compat.go:135] Uncaught signal: "killed" (9), PID: 13, TID: 19, fault addr: 0x0 D0510 23:29:04.883678 575144 task_exit.go:221] [ 18] Transitioning from exit state TaskExitInitiated to TaskExitZombie I0510 23:29:04.883695 575144 compat.go:135] Uncaught signal: "killed" (9), PID: 13, TID: 15, fault addr: 0x0 D0510 23:29:04.883752 575144 task_exit.go:221] [ 18] Transitioning from exit state TaskExitZombie to TaskExitDead I0510 23:29:04.883802 575144 compat.go:135] Uncaught signal: "killed" (9), PID: 13, TID: 27, fault addr: 0x0 D0510 23:29:04.883923 575144 task_exit.go:221] [ 27] Transitioning from exit state TaskExitNone to TaskExitInitiated I0510 23:29:04.883943 575144 compat.go:135] Uncaught signal: "killed" (9), PID: 13, TID: 20, fault addr: 0x0 I0510 23:29:04.884034 575144 compat.go:135] Uncaught signal: "killed" (9), PID: 13, TID: 21, fault addr: 0x0 D0510 23:29:04.884047 575144 task_exit.go:221] [ 26] Transitioning from exit state TaskExitNone to TaskExitInitiated D0510 23:29:04.884226 575144 task_exit.go:221] [ 17] Transitioning from exit state TaskExitNone to TaskExitInitiated I0510 23:29:04.884209 575144 compat.go:135] Uncaught signal: "killed" (9), PID: 13, TID: 14, fault addr: 0x0 D0510 23:29:04.884309 575144 task_exit.go:221] [ 16] Transitioning from exit state TaskExitInitiated to TaskExitZombie I0510 23:29:04.884331 575144 compat.go:135] Uncaught signal: "killed" (9), PID: 13, TID: 22, fault addr: 0x0 D0510 23:29:04.884352 575144 task_exit.go:221] [ 16] Transitioning from exit state TaskExitZombie to TaskExitDead I0510 23:29:04.884403 575144 compat.go:135] Uncaught signal: "killed" (9), PID: 13, TID: 23, fault addr: 0x0 D0510 23:29:04.884474 575144 task_exit.go:221] [ 23] Transitioning from exit state TaskExitNone to TaskExitInitiated I0510 23:29:04.884478 575144 compat.go:135] Uncaught signal: "killed" (9), PID: 13, TID: 25, fault addr: 0x0 D0510 23:29:04.884577 575144 task_exit.go:221] [ 19] Transitioning from exit state TaskExitNone to TaskExitInitiated D0510 23:29:04.884749 575144 task_exit.go:221] [ 19] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:29:04.884809 575144 task_exit.go:221] [ 19] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:29:04.884950 575144 task_exit.go:221] [ 15] Transitioning from exit state TaskExitNone to TaskExitInitiated D0510 23:29:04.885067 575144 task_exit.go:221] [ 20] Transitioning from exit state TaskExitNone to TaskExitInitiated D0510 23:29:04.885259 575144 task_exit.go:221] [ 26] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:29:04.885384 575144 task_exit.go:221] [ 26] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:29:04.885579 575144 task_exit.go:221] [ 14] Transitioning from exit state TaskExitNone to TaskExitInitiated D0510 23:29:04.885758 575144 task_exit.go:221] [ 22] Transitioning from exit state TaskExitNone to TaskExitInitiated D0510 23:29:04.885912 575144 task_exit.go:221] [ 25] Transitioning from exit state TaskExitNone to TaskExitInitiated D0510 23:29:04.886095 575144 task_exit.go:221] [ 15] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:29:04.886200 575144 task_exit.go:221] [ 15] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:29:04.886298 575144 task_exit.go:221] [ 20] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:29:04.886369 575144 task_exit.go:221] [ 20] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:29:04.886458 575144 task_exit.go:221] [ 27] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:29:04.886652 575144 task_exit.go:221] [ 27] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:29:04.886791 575144 task_exit.go:221] [ 17] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:29:04.886858 575144 task_exit.go:221] [ 17] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:29:04.886966 575144 task_exit.go:221] [ 21] Transitioning from exit state TaskExitNone to TaskExitInitiated D0510 23:29:04.887149 575144 task_exit.go:221] [ 23] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:29:04.887351 575144 task_exit.go:221] [ 23] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:29:04.887613 575144 task_exit.go:221] [ 22] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:29:04.887709 575144 task_exit.go:221] [ 22] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:29:04.887902 575144 task_exit.go:221] [ 14] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:29:04.887966 575144 task_exit.go:221] [ 14] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:29:04.888342 575144 task_exit.go:221] [ 25] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:29:04.888532 575144 task_exit.go:221] [ 25] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:29:04.892510 575144 task_exit.go:221] [ 21] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:29:04.892582 575144 task_exit.go:221] [ 21] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:29:04.892643 575144 task_exit.go:221] [ 13] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:29:04.893035 575144 loader.go:1029] updated processes (removal): map[{ci-gvisor-ptrace-2-race-0 0}:0xc00018e1b0] D0510 23:29:04.893156 575144 controller.go:506] containerManager.Wait, cid: ci-gvisor-ptrace-2-race-0, pid: 13, waitStatus: 0x200, err: D0510 23:29:04.893307 575144 urpc.go:551] urpc: successfully marshalled 38 bytes. D0510 23:29:04.893504 575256 urpc.go:594] urpc: unmarshal success. I0510 23:29:04.893622 575256 main.go:248] Exiting with status: 512 D0510 23:29:04.923293 575144 urpc.go:594] urpc: unmarshal success. D0510 23:29:04.923453 575144 controller.go:565] containerManager.Signal: cid: ci-gvisor-ptrace-2-race-0, PID: 0, signal: 0, mode: Process D0510 23:29:04.923596 575144 urpc.go:551] urpc: successfully marshalled 37 bytes. D0510 23:29:04.924595 575144 urpc.go:594] urpc: unmarshal success. D0510 23:29:04.936784 575144 urpc.go:551] urpc: successfully marshalled 96777 bytes. D0510 23:29:04.968970 575144 urpc.go:594] urpc: unmarshal success. D0510 23:29:04.969122 575144 controller.go:200] containerManager.Processes, cid: ci-gvisor-ptrace-2-race-0 D0510 23:29:04.969920 575144 urpc.go:551] urpc: successfully marshalled 163 bytes. I0510 23:29:05.089200 575144 calibrated_clock.go:74] CalibratedClock(Monotonic): ready I0510 23:29:05.089372 575144 calibrated_clock.go:74] CalibratedClock(Realtime): ready D0510 23:29:07.089265 575144 sampler.go:197] Time: Adjusting syscall overhead down to 875 D0510 23:29:07.089386 575144 sampler.go:197] Time: Adjusting syscall overhead down to 875