fatal error: fault
D0522 18:27:55.359738  158613 task_signals.go:220] [  12:  21] Signal 23: delivering to handler
[signal SIGBUS: bus error code=0x1 addr=0x7fdfa9600000 pc=0x60980d]

goroutine 136 [running]:
runtime.throw({0x6b8c56, 0xc000029000})
	/usr/local/go/src/runtime/panic.go:1198 +0x71 fp=0xc0027fb7b0 sp=0xc0027fb780 pc=0x433fd1
runtime.sigpanic()
	/usr/local/go/src/runtime/signal_unix.go:732 +0x125 fp=0xc0027fb800 sp=0xc0027fb7b0 pc=0x44a005
encoding/binary.littleEndian.Uint32(...)
	/usr/local/go/src/encoding/binary/binary.go:65
github.com/google/syzkaller/pkg/ipc.readUint32(...)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:453
github.com/google/syzkaller/pkg/ipc.(*Env).parseOutput(0xc0001f0930, 0xc0056484c0, 0xc0000176c0)
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:328 +0x6d fp=0xc0027fba38 sp=0xc0027fb800 pc=0x60980d
github.com/google/syzkaller/pkg/ipc.(*Env).Exec(0xc00032ab40, 0x65b260, 0xc0056484c0)
D0522 18:27:55.435770  158613 urpc.go:610] urpc: unmarshal success.
D0522 18:27:55.435840  158613 controller.go:604] containerManager.Signal: cid: ci-gvisor-ptrace-2-cover-1, PID: 0, signal: 0, mode: Process
D0522 18:27:55.435913  158613 urpc.go:567] urpc: successfully marshalled 37 bytes.
D0522 18:27:55.437169  158613 urpc.go:610] urpc: unmarshal success.
D0522 18:27:55.445544  158613 urpc.go:567] urpc: successfully marshalled 248715 bytes.
D0522 18:27:55.450431  158613 urpc.go:610] urpc: unmarshal success.
D0522 18:27:55.450521  158613 controller.go:248] containerManager.Processes, cid: ci-gvisor-ptrace-2-cover-1
D0522 18:27:55.450726  158613 urpc.go:567] urpc: successfully marshalled 511 bytes.
	/syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:292 +0x34c fp=0xc0027fbb18 sp=0xc0027fba38 pc=0x6093ec
main.(*Proc).executeRaw(0xc00b3f41c0, 0xc0056484c0, 0xc00d89b048, 0x5)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:321 +0x1bc fp=0xc0027fbc38 sp=0xc0027fbb18 pc=0x642bfc
main.(*Proc).execute(0xc00b3f41c0, 0xc008394fe0, 0x0, 0xc00b3f40c0, 0xc00ef10000)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:255 +0x49 fp=0xc0027fbd78 sp=0xc0027fbc38 pc=0x6423a9
main.(*Proc).executeAndCollide(0xc00b3f41c0, 0x6f142b, 0x12, 0xc0027fbe10, 0x1)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:284 +0x27 fp=0xc0027fbdc0 sp=0xc0027fbd78 pc=0x6428a7
main.(*Proc).smashInput(0xc00b3f41c0, 0xc008a2d4f0)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:221 +0x1cb fp=0xc0027fbea0 sp=0xc0027fbdc0 pc=0x641f4b
main.(*Proc).loop(0xc00b3f41c0)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:78 +0x125 fp=0xc0027fbfc8 sp=0xc0027fbea0 pc=0x640d25
main.main·dwrap·1()
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:300 +0x26 fp=0xc0027fbfe0 sp=0xc0027fbfc8 pc=0x63db06
runtime.goexit()
	/usr/local/go/src/runtime/asm_amd64.s:1581 +0x1 fp=0xc0027fbfe8 sp=0xc0027fbfe0 pc=0x464ac1
created by main.main
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:300 +0x157d