panic: Incrementing non-positive count 0xc000354d00 on kernel.ProcessGroup

goroutine 301 [running]:
panic(0xfccbe0, 0xc000197030)
	GOROOT/src/runtime/panic.go:1064 +0x470 fp=0xc00079f8b0 sp=0xc00079f7f8 pc=0x437110
gvisor.dev/gvisor/pkg/sentry/kernel.(*ProcessGroupRefs).IncRef(0xc000354d00)
	bazel-out/k8-fastbuild-ST-3bfd66f45e612c1a5c797474a25664e227d81bf914f3b08a40e00b2e2692afa4/bin/pkg/sentry/kernel/process_group_refs.go:72 +0x15f fp=0xc00079f928 sp=0xc00079f8b0 pc=0x9a2edf
gvisor.dev/gvisor/pkg/sentry/kernel.(*ProcessGroup).incRefWithParent(...)
	pkg/sentry/kernel/sessions.go:144
gvisor.dev/gvisor/pkg/sentry/kernel.(*ThreadGroup).CreateProcessGroup.func1(0xc000462000)
	pkg/sentry/kernel/sessions.go:407 +0x5d fp=0xc00079f950 sp=0xc00079f928 pc=0x9eb27d
gvisor.dev/gvisor/pkg/sentry/kernel.(*ThreadGroup).forEachChildThreadGroupLocked(0xc000568000, 0xc00079fa30)
	pkg/sentry/kernel/thread_group.go:340 +0x77 fp=0xc00079f9e0 sp=0xc00079f950 pc=0x9d3837
gvisor.dev/gvisor/pkg/sentry/kernel.(*ThreadGroup).CreateProcessGroup(0xc000568000, 0x0, 0x0)
	pkg/sentry/kernel/sessions.go:406 +0x294 fp=0xc00079fa68 sp=0xc00079f9e0 pc=0x9ad494
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Setpgid(0xc00046b500, 0x3, 0x0, 0x434c49, 0x0, 0x1, 0x1, 0x3d, 0x376d, 0xc00079fbe4, ...)
	pkg/sentry/syscalls/linux/sys_thread.go:616 +0xa5 fp=0xc00079faf8 sp=0xc00079fa68 pc=0xa56a05
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc00046b500, 0x6d, 0x3, 0x0, 0x434c49, 0x0, 0x1, 0x1, 0x1, 0x11a5d40, ...)
	pkg/sentry/kernel/task_syscall.go:104 +0x13c fp=0xc00079fc58 sp=0xc00079faf8 pc=0x9ce97c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc00046b500, 0x6d, 0x3, 0x0, 0x434c49, 0x0, 0x1, 0x1, 0x1, 0x1)
	pkg/sentry/kernel/task_syscall.go:239 +0x66 fp=0xc00079fce0 sp=0xc00079fc58 pc=0x9cfb46
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc00046b500, 0x6d, 0x3, 0x0, 0x434c49, 0x0, 0x1, 0x1, 0xde45ce, 0xc0005e25e0)
	pkg/sentry/kernel/task_syscall.go:199 +0x98 fp=0xc00079fd40 sp=0xc00079fce0 pc=0x9cf6f8
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc00046b500, 0x2, 0xc00046b500)
	pkg/sentry/kernel/task_syscall.go:174 +0x15c fp=0xc00079fe10 sp=0xc00079fd40 pc=0x9cf09c
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc00046b500, 0x12f6d00, 0x0)
	pkg/sentry/kernel/task_run.go:282 +0xc45 fp=0xc00079ff60 sp=0xc00079fe10 pc=0x9c34a5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc00046b500, 0x13)
	pkg/sentry/kernel/task_run.go:97 +0x1af fp=0xc00079ffd0 sp=0xc00079ff60 pc=0x9c216f
runtime.goexit()
	src/runtime/asm_amd64.s:1374 +0x1 fp=0xc00079ffd8 sp=0xc00079ffd0 pc=0x470681
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:323 +0xfe