panic: runtime error: invalid memory address or nil pointer dereference
	panic: nested locking: kernfs.filesystemRWMutex:
goroutine 7004 [running]:
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*filesystemRWMutex).Lock(0xc000577090)
	bazel-out/k8-fastbuild-ST-3dcbe13c9b87/bin/pkg/sentry/fsimpl/kernfs/filesystem_mutex.go:31 +0x58
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Dentry).DecRef(0xc000bda3f0, {0x786da0, 0xc001252000})
	pkg/sentry/fsimpl/kernfs/kernfs.go:294 +0x13c
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).processDeferredDecRefs(0xc000577040, {0x786da0?, 0xc001252000})
	pkg/sentry/fsimpl/kernfs/kernfs.go:181 +0x225
panic({0x322fc0, 0x28ac300})
	GOROOT/src/runtime/panic.go:890 +0x263
gvisor.dev/gvisor/pkg/sentry/inet.(*Namespace).GetInode(...)
	pkg/sentry/inet/namespace.go:70
gvisor.dev/gvisor/pkg/sentry/fsimpl/proc.(*namespaceSymlink).getInode(0xc000d8aa00, 0x12b611b?)
	pkg/sentry/fsimpl/proc/task_files.go:1276 +0x95
gvisor.dev/gvisor/pkg/sentry/fsimpl/proc.(*namespaceSymlink).Getlink(0xc000d8aa00, {0x786da0, 0xc001252000}, 0xc0006b3700)
	pkg/sentry/fsimpl/proc/task_files.go:1306 +0x127
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).stepExistingLocked(0xc000eba000?, {0x786da0, 0xc001252000}, 0xc000eba000, 0xc000bda360)
	pkg/sentry/fsimpl/kernfs/filesystem.go:85 +0x6ba
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).walkExistingLocked(0xc000577090?, {0x786da0, 0xc001252000}, 0xc000eba000)
	pkg/sentry/fsimpl/kernfs/filesystem.go:163 +0x11b
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).OpenAt(0xc000577040, {0x786da0, 0xc001252000}, 0xc000eba000, {0x8002, 0x0, 0x0})
	pkg/sentry/fsimpl/kernfs/filesystem.go:486 +0x18d
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).OpenAt(0xc001017d40?, {0x786da0, 0xc001252000}, 0xc00065c400?, 0xc0010b1428, 0xc000cef2f8)
	pkg/sentry/vfs/vfs.go:460 +0x6bc
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.openat(0xc001252000, 0x28c81c4?, 0x1?, 0x2, 0x0)
	pkg/sentry/syscalls/linux/sys_file.go:112 +0x365
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Openat(0x0?, 0xc0010b15d0?, {{0xffffff9c}, {0x7f066f552030}, {0x2}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/syscalls/linux/sys_file.go:91 +0xcb
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc001252000, 0x101, {{0xffffff9c}, {0x7f066f552030}, {0x2}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0xabf
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc001252000, 0x1?, {{0xffffff9c}, {0x7f066f552030}, {0x2}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x8e
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000310e10?, 0xc0010b1b37?, {{0xffffff9c}, {0x7f066f552030}, {0x2}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0xc5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc001252000)
	pkg/sentry/kernel/task_syscall.go:257 +0x53b
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc001252000?, 0xc001252000)
	pkg/sentry/kernel/task_run.go:269 +0x22b4
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc001252000, 0x63)
	pkg/sentry/kernel/task_run.go:98 +0x35b
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:389 +0x1da