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(0xc00014c000, 0xc0001aa400) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:469 +0x68 main.(*Fuzzer).deserializeInput(0xc00014c000, 0xc000334000, 0x3e7, 0x3e7, 0x0) /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:460 +0x14c D0510 23:29:32.956770 578558 task_signals.go:550] [ 22] Notified of signal 23 D0510 23:29:32.957303 578558 task_signals.go:252] [ 22] Signal 23: delivering to handler D0510 23:29:32.959860 578558 task_signals.go:550] [ 22] Notified of signal 23 D0510 23:29:32.960262 578558 task_signals.go:252] [ 22] Signal 23: delivering to handler D0510 23:29:32.963864 578558 task_signals.go:550] [ 22] Notified of signal 23 D0510 23:29:32.964300 578558 task_signals.go:252] [ 22] Signal 23: delivering to handler D0510 23:29:32.968004 578558 task_signals.go:550] [ 22] Notified of signal 23 D0510 23:29:32.968774 578558 task_signals.go:252] [ 22] Signal 23: delivering to handler main.(*Fuzzer).addCandidateInput(0xc00014c000, 0xc000334000, 0x3e7, 0x3e7, 0x101) D0510 23:29:32.973691 578558 task_signals.go:550] [ 22] Notified of signal 23 D0510 23:29:32.974041 578558 task_signals.go:252] [ 22] Signal 23: delivering to handler D0510 23:29:32.976799 578558 task_signals.go:550] [ 22] Notified of signal 23 D0510 23:29:32.977550 578558 task_signals.go:252] [ 22] Signal 23: delivering to handler D0510 23:29:32.980299 578558 task_signals.go:550] [ 22] Notified of signal 23 D0510 23:29:32.980774 578558 task_signals.go:252] [ 22] Signal 23: delivering to handler D0510 23:29:32.983441 578558 task_signals.go:550] [ 22] Notified of signal 23 D0510 23:29:32.983811 578558 task_signals.go:252] [ 22] Signal 23: delivering to handler D0510 23:29:32.986308 578558 task_signals.go:550] [ 22] Notified of signal 23 D0510 23:29:32.987131 578558 task_signals.go:252] [ 22] Signal 23: delivering to handler D0510 23:29:32.989602 578558 task_signals.go:550] [ 22] Notified of signal 23 D0510 23:29:32.990176 578558 task_signals.go:252] [ 22] Signal 23: delivering to handler /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:438 +0x4d D0510 23:29:32.993510 578558 task_signals.go:550] [ 22] Notified of signal 23 D0510 23:29:32.993896 578558 task_signals.go:252] [ 22] Signal 23: delivering to handler D0510 23:29:32.996598 578558 task_signals.go:550] [ 22] Notified of signal 23 D0510 23:29:32.997252 578558 task_signals.go:252] [ 22] Signal 23: delivering to handler D0510 23:29:32.999666 578558 task_signals.go:550] [ 22] Notified of signal 23 D0510 23:29:33.000260 578558 task_signals.go:252] [ 22] Signal 23: delivering to handler D0510 23:29:33.002649 578558 task_signals.go:550] [ 22] Notified of signal 23 D0510 23:29:33.003205 578558 task_signals.go:252] [ 22] Signal 23: delivering to handler D0510 23:29:33.006044 578558 task_signals.go:550] [ 22] Notified of signal 23 D0510 23:29:33.006823 578558 task_signals.go:252] [ 22] Signal 23: delivering to handler D0510 23:29:33.010757 578558 task_signals.go:550] [ 22] Notified of signal 23 main.(*Fuzzer).poll(0xc00014c000, 0xc000404301, 0x0, 0xc0001ac1f0) D0510 23:29:33.011427 578558 task_signals.go:252] [ 22] Signal 23: delivering to handler D0510 23:29:33.016749 578558 task_signals.go:550] [ 22] Notified of signal 23 D0510 23:29:33.017238 578558 task_signals.go:252] [ 22] Signal 23: delivering to handler D0510 23:29:33.020734 578558 urpc.go:695] urpc: unmarshal success. D0510 23:29:33.022609 578558 controller.go:565] containerManager.Signal: cid: ci-gvisor-ptrace-1-race-cover-0, PID: 0, signal: 0, mode: Process D0510 23:29:33.023005 578558 urpc.go:641] urpc: successfully marshalled 37 bytes. D0510 23:29:33.023574 578558 task_signals.go:550] [ 22] Notified of signal 23 /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:409 +0x4d4 D0510 23:29:33.024266 578558 task_signals.go:252] [ 22] Signal 23: delivering to handler D0510 23:29:33.024699 578558 urpc.go:695] urpc: unmarshal success. D0510 23:29:33.033321 578558 task_signals.go:550] [ 22] Notified of signal 23 D0510 23:29:33.033897 578558 task_signals.go:252] [ 22] Signal 23: delivering to handler main.main() D0510 23:29:33.037875 578558 task_signals.go:550] [ 22] Notified of signal 23 D0510 23:29:33.038320 578558 task_signals.go:252] [ 22] Signal 23: delivering to handler D0510 23:29:33.042496 578558 task_signals.go:550] [ 22] Notified of signal 23 D0510 23:29:33.043176 578558 urpc.go:641] urpc: successfully marshalled 120185 bytes. D0510 23:29:33.043485 578558 task_signals.go:252] [ 22] Signal 23: delivering to handler D0510 23:29:33.047610 578558 task_signals.go:550] [ 22] Notified of signal 23 /syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:273 +0x1271 D0510 23:29:33.048240 578558 task_signals.go:252] [ 22] Signal 23: delivering to handler D0510 23:29:33.050677 578558 task_signals.go:550] [ 22] Notified of signal 23 D0510 23:29:33.051838 578558 task_signals.go:216] [ 15] Signal 9: terminating thread group D0510 23:29:33.052035 578558 task_signals.go:216] [ 11] Signal 9: terminating thread group D0510 23:29:33.052166 578558 task_signals.go:216] [ 18] Signal 9: terminating thread group D0510 23:29:33.052324 578558 task_signals.go:216] [ 21] Signal 9: terminating thread group D0510 23:29:33.052589 578558 task_signals.go:216] [ 20] Signal 9: terminating thread group D0510 23:29:33.052795 578558 task_signals.go:216] [ 13] Signal 9: terminating thread group D0510 23:29:33.052978 578558 task_signals.go:216] [ 14] Signal 9: terminating thread group D0510 23:29:33.053209 578558 task_signals.go:216] [ 16] Signal 9: terminating thread group D0510 23:29:33.053258 578558 task_exit.go:252] [ 22] Transitioning from exit state TaskExitNone to TaskExitInitiated I0510 23:29:33.053630 578558 compat.go:135] Uncaught signal: "killed" (9), PID: 11, TID: 16, fault addr: 0x0 I0510 23:29:33.053807 578558 compat.go:135] Uncaught signal: "killed" (9), PID: 11, TID: 21, fault addr: 0x0 D0510 23:29:33.053911 578558 task_signals.go:216] [ 12] Signal 9: terminating thread group I0510 23:29:33.054004 578558 compat.go:135] Uncaught signal: "killed" (9), PID: 11, TID: 18, fault addr: 0x0 D0510 23:29:33.054180 578558 task_signals.go:216] [ 19] Signal 9: terminating thread group I0510 23:29:33.054208 578558 compat.go:135] Uncaught signal: "killed" (9), PID: 11, TID: 20, fault addr: 0x0 D0510 23:29:33.054441 578558 task_signals.go:216] [ 17] Signal 9: terminating thread group I0510 23:29:33.054510 578558 compat.go:135] Uncaught signal: "killed" (9), PID: 11, TID: 11, fault addr: 0x0 D0510 23:29:33.054746 578558 task_exit.go:252] [ 18] Transitioning from exit state TaskExitNone to TaskExitInitiated I0510 23:29:33.054766 578558 compat.go:135] Uncaught signal: "killed" (9), PID: 11, TID: 12, fault addr: 0x0 I0510 23:29:33.055166 578558 compat.go:135] Uncaught signal: "killed" (9), PID: 11, TID: 15, fault addr: 0x0 D0510 23:29:33.055390 578558 task_exit.go:252] [ 15] Transitioning from exit state TaskExitNone to TaskExitInitiated I0510 23:29:33.055469 578558 compat.go:135] Uncaught signal: "killed" (9), PID: 11, TID: 14, fault addr: 0x0 D0510 23:29:33.055633 578558 task_exit.go:252] [ 20] Transitioning from exit state TaskExitNone to TaskExitInitiated I0510 23:29:33.055657 578558 compat.go:135] Uncaught signal: "killed" (9), PID: 11, TID: 19, fault addr: 0x0 D0510 23:29:33.055836 578558 task_exit.go:252] [ 16] Transitioning from exit state TaskExitNone to TaskExitInitiated I0510 23:29:33.055888 578558 compat.go:135] Uncaught signal: "killed" (9), PID: 11, TID: 13, fault addr: 0x0 D0510 23:29:33.056091 578558 task_exit.go:252] [ 21] Transitioning from exit state TaskExitNone to TaskExitInitiated I0510 23:29:33.056221 578558 compat.go:135] Uncaught signal: "killed" (9), PID: 11, TID: 17, fault addr: 0x0 D0510 23:29:33.056400 578558 task_exit.go:252] [ 11] Transitioning from exit state TaskExitNone to TaskExitInitiated D0510 23:29:33.056645 578558 task_exit.go:252] [ 12] Transitioning from exit state TaskExitNone to TaskExitInitiated D0510 23:29:33.057147 578558 task_exit.go:252] [ 19] Transitioning from exit state TaskExitNone to TaskExitInitiated D0510 23:29:33.057495 578558 task_exit.go:252] [ 14] Transitioning from exit state TaskExitNone to TaskExitInitiated D0510 23:29:33.057887 578558 task_exit.go:252] [ 13] Transitioning from exit state TaskExitNone to TaskExitInitiated D0510 23:29:33.058520 578558 task_exit.go:252] [ 17] Transitioning from exit state TaskExitNone to TaskExitInitiated D0510 23:29:33.058958 578558 task_exit.go:252] [ 22] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:29:33.059137 578558 task_exit.go:252] [ 22] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:29:33.060435 578558 task_exit.go:252] [ 18] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:29:33.060646 578558 task_exit.go:252] [ 18] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:29:33.061577 578558 task_exit.go:252] [ 11] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:29:33.061894 578558 task_exit.go:252] [ 15] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:29:33.062146 578558 task_exit.go:252] [ 15] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:29:33.062840 578558 task_exit.go:252] [ 20] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:29:33.063006 578558 task_exit.go:252] [ 20] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:29:33.063438 578558 task_exit.go:252] [ 16] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:29:33.063626 578558 task_exit.go:252] [ 16] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:29:33.064165 578558 task_exit.go:252] [ 14] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:29:33.064348 578558 task_exit.go:252] [ 14] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:29:33.064568 578558 task_exit.go:252] [ 21] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:29:33.064752 578558 task_exit.go:252] [ 21] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:29:33.065179 578558 task_exit.go:252] [ 12] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:29:33.065331 578558 task_exit.go:252] [ 12] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:29:33.065566 578558 task_exit.go:252] [ 19] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:29:33.065714 578558 task_exit.go:252] [ 19] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:29:33.065841 578558 urpc.go:695] urpc: unmarshal success. D0510 23:29:33.066130 578558 controller.go:200] containerManager.Processes, cid: ci-gvisor-ptrace-1-race-cover-0 D0510 23:29:33.066118 578558 task_exit.go:252] [ 13] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:29:33.066304 578558 task_exit.go:252] [ 13] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:29:33.068495 578558 urpc.go:641] urpc: successfully marshalled 269 bytes. D0510 23:29:33.134824 578558 task_exit.go:252] [ 17] Transitioning from exit state TaskExitInitiated to TaskExitZombie D0510 23:29:33.135044 578558 task_exit.go:252] [ 17] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:29:33.135259 578558 task_exit.go:252] [ 11] Transitioning from exit state TaskExitZombie to TaskExitDead D0510 23:29:33.135740 578558 loader.go:1029] updated processes (removal): map[{ci-gvisor-ptrace-1-race-cover-0 0}:0xc000323f20] D0510 23:29:33.135889 578558 controller.go:506] containerManager.Wait, cid: ci-gvisor-ptrace-1-race-cover-0, pid: 11, waitStatus: 0x200, err: D0510 23:29:33.136146 578558 urpc.go:641] urpc: successfully marshalled 38 bytes. D0510 23:29:33.136332 579005 urpc.go:695] urpc: unmarshal success. I0510 23:29:33.136478 579005 main.go:248] Exiting with status: 512 D0510 23:29:35.436407 578558 sampler.go:190] Time: Adjusting syscall overhead up to 2000 D0510 23:29:39.436499 578558 sampler.go:190] Time: Adjusting syscall overhead up to 2000 D0510 23:29:39.436920 578558 sampler.go:229] Time: Adjusting syscall overhead down to 1750 D0510 23:29:51.436481 578558 sampler.go:229] Time: Adjusting syscall overhead down to 1750 D0510 23:29:52.436320 578558 sampler.go:229] Time: Adjusting syscall overhead down to 1532 D0510 23:29:53.436249 578558 sampler.go:229] Time: Adjusting syscall overhead down to 1341 D0510 23:29:58.436424 578558 sampler.go:229] Time: Adjusting syscall overhead down to 1532