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(0xc000211860, 0xc00035a000) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:469 +0x68 main.(*Fuzzer).deserializeInput(0xc000211860, 0xc000298000, 0x6d, 0x6d, 0x0) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:460 +0x14c main.(*Fuzzer).addCandidateInput(0xc000211860, 0xc000298000, 0x6d, 0x6d, 0x101) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:438 +0x4d main.(*Fuzzer).poll(0xc000211860, 0xc00052ce01, 0x0, 0xc0001a2c88) /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 23:26:20.532226 552035 task_signals.go:216] [ 15] Signal 9: terminating thread group D0510 23:26:20.532421 552035 task_signals.go:216] [ 14] Signal 9: terminating thread group D0510 23:26:20.532546 552035 task_signals.go:216] [ 23] Signal 9: terminating thread group D0510 23:26:20.532782 552035 task_exit.go:252] [ 16] Transitioning from exit state TaskExitNone to TaskExitInitiated D0510 23:26:20.533249 552035 task_signals.go:216] [ 12] Signal 9: terminating thread group I0510 23:26:20.533138 552035 compat.go:135] Uncaught signal: "killed" (9), PID: 12, TID: 15, fault addr: 0x0 I0510 23:26:20.533442 552035 compat.go:135] Uncaught signal: "killed" (9), PID: 12, TID: 14, fault addr: 0x0 D0510 23:26:20.533519 552035 task_signals.go:216] [ 18] Signal 9: terminating thread group I0510 23:26:20.533649 552035 compat.go:135] Uncaught signal: "killed" (9), PID: 12, TID: 12, fault addr: 0x0 I0510 23:26:20.533831 552035 compat.go:135] Uncaught signal: "killed" (9), PID: 12, TID: 23, fault addr: 0x0 D0510 23:26:20.533879 552035 task_signals.go:216] [ 20] Signal 9: terminating thread group D0510 23:26:20.533901 552035 task_signals.go:216] [ 19] Signal 9: terminating thread group D0510 23:26:20.533617 552035 task_exit.go:252] [ 16] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:26:20.534121 552035 task_exit.go:252] [ 16] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:26:20.534240 552035 task_signals.go:216] [ 22] Signal 9: terminating thread group D0510 23:26:20.534572 552035 task_signals.go:216] [ 21] Signal 9: terminating thread group D0510 23:26:20.534788 552035 task_signals.go:216] [ 17] Signal 9: terminating thread group D0510 23:26:20.535118 552035 task_signals.go:216] [ 13] Signal 9: terminating thread group I0510 23:26:20.535356 552035 compat.go:135] Uncaught signal: "killed" (9), PID: 12, TID: 13, fault addr: 0x0 I0510 23:26:20.535497 552035 compat.go:135] Uncaught signal: "killed" (9), PID: 12, TID: 22, fault addr: 0x0 D0510 23:26:20.535518 552035 task_exit.go:252] [ 23] Transitioning from exit state TaskExitNone to TaskExitInitiated I0510 23:26:20.535622 552035 compat.go:135] Uncaught signal: "killed" (9), PID: 12, TID: 21, fault addr: 0x0 I0510 23:26:20.535831 552035 compat.go:135] Uncaught signal: "killed" (9), PID: 12, TID: 19, fault addr: 0x0 D0510 23:26:20.535896 552035 task_exit.go:252] [ 21] Transitioning from exit state TaskExitNone to TaskExitInitiated I0510 23:26:20.536029 552035 compat.go:135] Uncaught signal: "killed" (9), PID: 12, TID: 18, fault addr: 0x0 D0510 23:26:20.536121 552035 task_exit.go:252] [ 19] Transitioning from exit state TaskExitNone to TaskExitInitiated I0510 23:26:20.536242 552035 compat.go:135] Uncaught signal: "killed" (9), PID: 12, TID: 17, fault addr: 0x0 D0510 23:26:20.536467 552035 task_exit.go:252] [ 17] Transitioning from exit state TaskExitNone to TaskExitInitiated I0510 23:26:20.536462 552035 compat.go:135] Uncaught signal: "killed" (9), PID: 12, TID: 20, fault addr: 0x0 D0510 23:26:20.536714 552035 task_exit.go:252] [ 20] Transitioning from exit state TaskExitNone to TaskExitInitiated D0510 23:26:20.536952 552035 task_exit.go:252] [ 15] Transitioning from exit state TaskExitNone to TaskExitInitiated D0510 23:26:20.537711 552035 task_exit.go:252] [ 15] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:26:20.537824 552035 task_exit.go:252] [ 15] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:26:20.538289 552035 task_exit.go:252] [ 14] Transitioning from exit state TaskExitNone to TaskExitInitiated D0510 23:26:20.538673 552035 task_exit.go:252] [ 12] Transitioning from exit state TaskExitNone to TaskExitInitiated D0510 23:26:20.539037 552035 task_exit.go:252] [ 13] Transitioning from exit state TaskExitNone to TaskExitInitiated D0510 23:26:20.539388 552035 task_exit.go:252] [ 22] Transitioning from exit state TaskExitNone to TaskExitInitiated D0510 23:26:20.539619 552035 task_exit.go:252] [ 18] Transitioning from exit state TaskExitNone to TaskExitInitiated D0510 23:26:20.540812 552035 task_exit.go:252] [ 19] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:26:20.540976 552035 task_exit.go:252] [ 19] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:26:20.541481 552035 task_exit.go:252] [ 17] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:26:20.541642 552035 task_exit.go:252] [ 17] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:26:20.542313 552035 task_exit.go:252] [ 12] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:26:20.542597 552035 task_exit.go:252] [ 21] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:26:20.542747 552035 task_exit.go:252] [ 21] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:26:20.543245 552035 task_exit.go:252] [ 14] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:26:20.543347 552035 task_exit.go:252] [ 14] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:26:20.543674 552035 task_exit.go:252] [ 23] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:26:20.543912 552035 task_exit.go:252] [ 23] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:26:20.544242 552035 task_exit.go:252] [ 20] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:26:20.544372 552035 task_exit.go:252] [ 20] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:26:20.544577 552035 task_exit.go:252] [ 13] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:26:20.544669 552035 task_exit.go:252] [ 13] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:26:20.544959 552035 task_exit.go:252] [ 22] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:26:20.545106 552035 task_exit.go:252] [ 22] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:26:20.613890 552035 task_exit.go:252] [ 18] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:26:20.614078 552035 task_exit.go:252] [ 18] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:26:20.614327 552035 task_exit.go:252] [ 12] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:26:20.614784 552035 loader.go:1029] updated processes (removal): map[{ci-gvisor-ptrace-3-race-cover-0 0}:0xc0004a6810] D0510 23:26:20.614908 552035 controller.go:506] containerManager.Wait, cid: ci-gvisor-ptrace-3-race-cover-0, pid: 12, waitStatus: 0x200, err: D0510 23:26:20.615143 552035 urpc.go:641] urpc: successfully marshalled 38 bytes. D0510 23:26:20.615389 552123 urpc.go:695] urpc: unmarshal success. I0510 23:26:20.615556 552123 main.go:248] Exiting with status: 512 D0510 23:26:20.616036 552035 urpc.go:695] urpc: unmarshal success. D0510 23:26:20.616296 552035 controller.go:565] containerManager.Signal: cid: ci-gvisor-ptrace-3-race-cover-0, PID: 0, signal: 0, mode: Process D0510 23:26:20.616609 552035 urpc.go:641] urpc: successfully marshalled 37 bytes. D0510 23:26:20.617851 552035 urpc.go:695] urpc: unmarshal success. D0510 23:26:20.620291 552035 urpc.go:641] urpc: successfully marshalled 33954 bytes. D0510 23:26:20.627982 552035 urpc.go:695] urpc: unmarshal success. D0510 23:26:20.628152 552035 controller.go:200] containerManager.Processes, cid: ci-gvisor-ptrace-3-race-cover-0 D0510 23:26:20.628948 552035 urpc.go:641] urpc: successfully marshalled 160 bytes. D0510 23:26:21.612327 552035 sampler.go:190] Time: Adjusting syscall overhead up to 2000 D0510 23:26:22.612487 552035 sampler.go:190] Time: Adjusting syscall overhead up to 2000 D0510 23:26:42.612264 552035 sampler.go:229] Time: Adjusting syscall overhead down to 1750 D0510 23:26:42.612485 552035 sampler.go:229] Time: Adjusting syscall overhead down to 1750 D0510 23:26:47.612214 552035 sampler.go:229] Time: Adjusting syscall overhead down to 1532 D0510 23:26:47.612480 552035 sampler.go:229] Time: Adjusting syscall overhead down to 1532 D0510 23:26:48.612433 552035 sampler.go:229] Time: Adjusting syscall overhead down to 1341