panic: running on goroutine 74 (task goroutine for kernel.Task 0xc0009da588 is 0)

goroutine 74 gp=0xc000830a80 m=14 mp=0xc00062c008 [running]:
panic({0x1beb780?, 0xc000260ab0?})
	bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:804 +0x168 fp=0xc000d85558 sp=0xc000d854a8 pc=0x478628
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).assertTaskGoroutine(0xc0009da588)
	pkg/sentry/kernel/task_run.go:368 +0x14e fp=0xc000d855d8 sp=0xc000d85558 pc=0xfdbdee
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Value(0xc0009da588, {0x1bed040, 0x2045f88})
	pkg/sentry/kernel/task_context.go:59 +0x57 fp=0xc000d85618 sp=0xc000d855d8 pc=0xfbce37
gvisor.dev/gvisor/pkg/sentry/kernel.KernelFromContext({0x2073ac0, 0xc0009da588})
	pkg/sentry/kernel/context.go:55 +0x5b fp=0xc000d85650 sp=0xc000d85618 pc=0xf63c7b
gvisor.dev/gvisor/pkg/sentry/fsimpl/cgroupfs.(*filesystem).Release(0xc000ae0000, {0x2073ac0, 0xc0009da588})
	pkg/sentry/fsimpl/cgroupfs/cgroupfs.go:468 +0x4b fp=0xc000d856b0 sp=0xc000d85650 pc=0x171d0ab
gvisor.dev/gvisor/pkg/sentry/vfs.(*Filesystem).DecRef.func1()
	pkg/sentry/vfs/filesystem.go:81 +0x11f fp=0xc000d85708 sp=0xc000d856b0 pc=0xb16c5f
gvisor.dev/gvisor/pkg/sentry/vfs.(*FilesystemRefs).DecRef(0xc000ae0000, 0xc000d85790)
	bazel-out/k8-fastbuild/bin/pkg/sentry/vfs/filesystem_refs.go:133 +0xb4 fp=0xc000d85780 sp=0xc000d85708 pc=0xb17774
gvisor.dev/gvisor/pkg/sentry/vfs.(*Filesystem).DecRef(0xc000ae0000, {0x2073ac0, 0xc0009da588})
	pkg/sentry/vfs/filesystem.go:77 +0xa5 fp=0xc000d857c0 sp=0xc000d85780 pc=0xb16b05
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).unlockMounts(0xc0001c71e0, {0x2073ac0, 0xc0009da588})
	pkg/sentry/vfs/vfs.go:1050 +0x2b0 fp=0xc000d85890 sp=0xc000d857c0 pc=0xb4aa70
gvisor.dev/gvisor/pkg/sentry/vfs.(*Mount).destroy.deferwrap1()
	pkg/sentry/vfs/mount.go:949 +0x50 fp=0xc000d858d0 sp=0xc000d85890 pc=0xb27a50
runtime.deferreturn()
	bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:605 +0x5e fp=0xc000d85960 sp=0xc000d858d0 pc=0x43b97e
gvisor.dev/gvisor/pkg/sentry/vfs.(*Mount).destroy(0xc000775080, {0x2073ac0, 0xc0009da588})
	pkg/sentry/vfs/mount.go:979 +0x8cc fp=0xc000d85ad8 sp=0xc000d85960 pc=0xb2796c
gvisor.dev/gvisor/pkg/sentry/vfs.(*Mount).DecRef(0xc000775080, {0x2073ac0, 0xc0009da588})
	pkg/sentry/vfs/mount.go:943 +0xca fp=0xc000d85b08 sp=0xc000d85ad8 pc=0xb2706a
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).processDeferredDecRefs.deferwrap1()
	pkg/sentry/fsimpl/kernfs/kernfs.go:182 +0x62 fp=0xc000d85b50 sp=0xc000d85b08 pc=0xc94e22
runtime.deferreturn()
	bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:605 +0x5e fp=0xc000d85be0 sp=0xc000d85b50 pc=0x43b97e
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).processDeferredDecRefs(0xc0006946c0, {0x2073ac0, 0xc0009da588})
	pkg/sentry/fsimpl/kernfs/kernfs.go:186 +0x205 fp=0xc000d85c40 sp=0xc000d85be0 pc=0xc94d85
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Dentry).Invalidate.deferwrap1()
	pkg/sentry/fsimpl/kernfs/kernfs.go:323 +0x50 fp=0xc000d85c80 sp=0xc000d85c40 pc=0xc95a70
runtime.deferreturn()
	bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:605 +0x5e fp=0xc000d85d10 sp=0xc000d85c80 pc=0x43b97e
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Dentry).Invalidate(0xc000621320, {0x2073ac0, 0xc0009da588})
	pkg/sentry/fsimpl/kernfs/kernfs.go:339 +0x42d fp=0xc000d85e30 sp=0xc000d85d10 pc=0xc9592d
gvisor.dev/gvisor/pkg/sentry/fsimpl/proc.(*taskInode).TaskDestroyAction(0xc000791808, {0x2073ac0, 0xc0009da588})
	pkg/sentry/fsimpl/proc/task.go:130 +0x18d fp=0xc000d85ee0 sp=0xc000d85e30 pc=0x13ce52d
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).execOnDestroyActions.func1()
	pkg/sentry/kernel/task_exit.go:807 +0x1ad fp=0xc000d85fe0 sp=0xc000d85ee0 pc=0xfc736d
runtime.goexit({})
	src/runtime/asm_amd64.s:1700 +0x1 fp=0xc000d85fe8 sp=0xc000d85fe0 pc=0x4819a1
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).execOnDestroyActions in goroutine 290
	pkg/sentry/kernel/task_exit.go:804 +0x1f1