panic: Incrementing non-positive count 0xc00a111858 on tmpfs.inode

goroutine 603 [running]:
panic({0x10c0920, 0xc00636dce0})
	GOROOT/src/runtime/panic.go:987 +0x3bb fp=0xc0006573c0 sp=0xc000657300 pc=0x436cdb
gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*inodeRefs).IncRef(0xc00a111858)
	bazel-out/k8-fastbuild/bin/pkg/sentry/fsimpl/tmpfs/inode_refs.go:80 +0xfb fp=0xc000657428 sp=0xc0006573c0 pc=0x842e9b
gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*inode).incRef(...)
	pkg/sentry/fsimpl/tmpfs/tmpfs.go:544
gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*dentry).IncRef(...)
	pkg/sentry/fsimpl/tmpfs/tmpfs.go:401
gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*filesystem).GetDentryAt(0xc00036cc60?, {0x15194f8, 0xc000a36a80}, 0xc0011aa000, {0xf3?})
	pkg/sentry/fsimpl/tmpfs/filesystem.go:255 +0x1a5 fp=0xc000657498 sp=0xc000657428 pc=0x83c225
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).GetDentryAt(0x7f71de?, {0x15194f8, 0xc000a36a80}, 0x15194f8?, 0xc000a36a80?, 0xc00065754d)
	pkg/sentry/vfs/vfs.go:242 +0x92 fp=0xc000657500 sp=0xc000657498 pc=0x754df2
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).UmountAt(0xc00036cc60, {0x15194f8, 0xc000a36a80}, 0xc000f1b800?, 0xc007c7f900?, 0xc00065775c)
	pkg/sentry/vfs/mount.go:459 +0xd6 fp=0xc0006576d0 sp=0xc000657500 pc=0x749096
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Umount2(0xc000a36a80, 0xc14745?, {{0x7f12d164c640}, {0xa}, {0xc}, {0x0}, {0xefce082}, {0x1082}})
	pkg/sentry/syscalls/linux/sys_mount.go:171 +0x2b2 fp=0xc000657868 sp=0xc0006576d0 pc=0xa7b132
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000a36a80, 0xa6, {{0x7f12d164c640}, {0xa}, {0xc}, {0x0}, {0xefce082}, {0x1082}})
	pkg/sentry/kernel/task_syscall.go:142 +0x755 fp=0xc000657c58 sp=0xc000657868 pc=0x942bd5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000a36a80, 0x85?, {{0x7f12d164c640}, {0xa}, {0xc}, {0x0}, {0xefce082}, {0x1082}})
	pkg/sentry/kernel/task_syscall.go:322 +0x4a fp=0xc000657cb8 sp=0xc000657c58 pc=0x943e0a
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000c6c878?, 0x0?, {{0x7f12d164c640}, {0xa}, {0xc}, {0x0}, {0xefce082}, {0x1082}})
	pkg/sentry/kernel/task_syscall.go:282 +0x65 fp=0xc000657d18 sp=0xc000657cb8 pc=0x943ae5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc00002fd40?)
	pkg/sentry/kernel/task_syscall.go:257 +0x2f0 fp=0xc000657e10 sp=0xc000657d18 pc=0x943850
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0?, 0xc000a36a80)
	pkg/sentry/kernel/task_run.go:269 +0x103e fp=0xc000657f48 sp=0xc000657e10 pc=0x9379de
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000a36a80, 0x23)
	pkg/sentry/kernel/task_run.go:98 +0x1f8 fp=0xc000657fc0 sp=0xc000657f48 pc=0x9362f8
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:377 +0x2a fp=0xc000657fe0 sp=0xc000657fc0 pc=0x9413ca
runtime.goexit()
	src/runtime/asm_amd64.s:1598 +0x1 fp=0xc000657fe8 sp=0xc000657fe0 pc=0x46d741
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:377 +0xef