panic: Start 0x5565cc891fd6 + offset 0x5565cc892000 overflows?
DIAGNOSIS:
I0316 07:38:15.786956   60782 main.go:305] ***************************
I0316 07:38:15.787081   60782 main.go:306] Args: [/syzkaller/managers/ptrace-direct-overlay-host-race/current/image -root /syzkaller/managers/ptrace-direct-overlay-host-race/workdir/gvisor_root -watchdog-action=panic -network=none -debug -alsologtostderr -platform=ptrace -file-access=exclusive -overlay -network=host -TESTONLY-unsafe-nonroot debug -stacks --ps ci-gvisor-ptrace-direct-overlay-host-race-2]
I0316 07:38:15.787332   60782 main.go:307] Version release-20200219.0-178-g97127750289b
I0316 07:38:15.787433   60782 main.go:308] PID: 60782
I0316 07:38:15.787517   60782 main.go:309] UID: 0, GID: 0
I0316 07:38:15.787601   60782 main.go:310] Configuration:
I0316 07:38:15.787667   60782 main.go:311] 		RootDir: /syzkaller/managers/ptrace-direct-overlay-host-race/workdir/gvisor_root
I0316 07:38:15.787744   60782 main.go:312] 		Platform: ptrace
I0316 07:38:15.787831   60782 main.go:313] 		FileAccess: exclusive, overlay: true
I0316 07:38:15.787963   60782 main.go:314] 		Network: host, logging: false
I0316 07:38:15.788068   60782 main.go:315] 		Strace: false, max size: 1024, syscalls: []
I0316 07:38:15.788172   60782 main.go:316] ***************************
W0316 07:38:15.788280   60782 main.go:321] Block the TERM signal. This is only safe in tests!
D0316 07:38:15.794184   60782 container.go:159] Load container "/syzkaller/managers/ptrace-direct-overlay-host-race/workdir/gvisor_root" "ci-gvisor-ptrace-direct-overlay-host-race-2"
D0316 07:38:15.809760   60782 container.go:592] Signal container "ci-gvisor-ptrace-direct-overlay-host-race-2": signal 0
D0316 07:38:15.810047   60782 sandbox.go:814] Signal sandbox "ci-gvisor-ptrace-direct-overlay-host-race-2"
D0316 07:38:15.810165   60782 sandbox.go:318] Connecting to sandbox "ci-gvisor-ptrace-direct-overlay-host-race-2"
D0316 07:38:15.810676   60782 urpc.go:534] urpc: successfully marshalled 123 bytes.
I0316 07:38:16.385111   60782 debug.go:128] Found sandbox "ci-gvisor-ptrace-direct-overlay-host-race-2", PID: 30273
I0316 07:38:16.385255   60782 debug.go:137] Retrieving sandbox stacks
D0316 07:38:16.385347   60782 sandbox.go:932] Stacks sandbox "ci-gvisor-ptrace-direct-overlay-host-race-2"
D0316 07:38:16.385448   60782 sandbox.go:318] Connecting to sandbox "ci-gvisor-ptrace-direct-overlay-host-race-2"
W0316 07:38:16.385638   60782 error.go:48] FATAL ERROR: retrieving stacks: connecting to control server at PID 30273: connection refused
retrieving stacks: connecting to control server at PID 30273: connection refused
W0316 07:38:16.385972   60782 main.go:338] Failure to execute command, err: 1