panic: Incrementing non-positive count 0x400877c058 on tmpfs.inode

goroutine 306 [running]:
panic({0xb8fd00, 0x4009eff900})
	GOROOT/src/runtime/panic.go:987 +0x3ac fp=0x40004dd3a0 sp=0x40004dd2e0 pc=0x4533c
gvisor.dev/gvisor/pkg/sentry/fsimpl/tmpfs.(*inodeRefs).IncRef(0x400877c058)
	bazel-out/aarch64-fastbuild/bin/pkg/sentry/fsimpl/tmpfs/inode_refs.go:80 +0x10c fp=0x40004dd410 sp=0x40004dd3a0 pc=0x4087fc
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(0x400054e200?, {0x10027b8, 0x40006c0a80}, 0x400169c480, {0xe8?})
	pkg/sentry/fsimpl/tmpfs/filesystem.go:255 +0x160 fp=0x40004dd480 sp=0x40004dd410 pc=0x402d40
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).GetDentryAt(0x40004dd568?, {0x10027b8, 0x40006c0a80}, 0xffffb42155b8?, 0x100?, 0x40004dd54d)
	pkg/sentry/vfs/vfs.go:248 +0x88 fp=0x40004dd4f0 sp=0x40004dd480 pc=0x32c348
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).UmountAt(0x400054e200, {0x10027b8, 0x40006c0a80}, 0x40006c0a80?, 0xffcd01?, 0x40004dd71c)
	pkg/sentry/vfs/mount.go:459 +0x98 fp=0x40004dd6d0 sp=0x40004dd4f0 pc=0x3214c8
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Umount2(0x40006c0a80, 0x34d4c0?, {{0xe298e5cd1620}, {0xa}, {0xc}, {0xd70e61560000}, {0xd70e61560000}, {0x44b82fa09b5a53}})
	pkg/sentry/syscalls/linux/sys_mount.go:171 +0x1d4 fp=0x40004dd820 sp=0x40004dd6d0 pc=0x606264
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0x40006c0a80, 0x27, {{0xe298e5cd1620}, {0xa}, {0xc}, {0xd70e61560000}, {0xd70e61560000}, {0x44b82fa09b5a53}})
	pkg/sentry/kernel/task_syscall.go:142 +0x5a0 fp=0x40004ddc10 sp=0x40004dd820 pc=0x4ee050
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0x40006c0a80, 0xd70e61560000?, {{0xe298e5cd1620}, {0xa}, {0xc}, {0xd70e61560000}, {0xd70e61560000}, {0x44b82fa09b5a53}})
	pkg/sentry/kernel/task_syscall.go:322 +0x3c fp=0x40004ddc70 sp=0x40004ddc10 pc=0x4eef4c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0x7?, 0xd70e61561000?, {{0xe298e5cd1620}, {0xa}, {0xc}, {0xd70e61560000}, {0xd70e61560000}, {0x44b82fa09b5a53}})
	pkg/sentry/kernel/task_syscall.go:282 +0x58 fp=0x40004ddcd0 sp=0x40004ddc70 pc=0x4eec68
D0506 22:49:28.923105  253973 task_exit.go:204] [ 22698: 22698] Transitioning from exit state TaskExitZombie to TaskExitDead
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0x400047cc30?)
	pkg/sentry/kernel/task_syscall.go:257 +0x284 fp=0x40004dddd0 sp=0x40004ddcd0 pc=0x4eea14
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0?, 0x40006c0a80)
	pkg/sentry/kernel/task_run.go:269 +0xdbc fp=0x40004ddf20 sp=0x40004dddd0 pc=0x4e412c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0x40006c0a80, 0x1a)
	pkg/sentry/kernel/task_run.go:98 +0x1d4 fp=0x40004ddfb0 sp=0x40004ddf20 pc=0x4e2d24
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:377 +0x2c fp=0x40004ddfd0 sp=0x40004ddfb0 pc=0x4ecb0c
runtime.goexit()
	src/runtime/asm_arm64.s:1172 +0x4 fp=0x40004ddfd0 sp=0x40004ddfd0 pc=0x7a764
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:377 +0xe4