panic: Incrementing non-positive count 0x4001174e68 on nsfs.Inode

goroutine 2109 gp=0x4000df08c0 m=14 mp=0x4000a26008 [running]:
panic({0x1a49da0?, 0x40014fdb00?})
	/syzkaller/.cache/bazel/_bazel_root/2defe4792b6e1aac1936903102d81265/sandbox/linux-sandbox/28/execroot/_main/go/src/runtime/panic.go:802 +0x150 fp=0x4000877860 sp=0x40008777b0 pc=0x8cb80
gvisor.dev/gvisor/pkg/sentry/fsimpl/nsfs.(*inodeRefs).IncRef(0x4001174e68)
	/syzkaller/.cache/bazel/_bazel_root/2defe4792b6e1aac1936903102d81265/sandbox/linux-sandbox/28/execroot/_main/gopath/src/gvisor.dev/gvisor/pkg/sentry/fsimpl/nsfs/inode_refs.go:82 +0x278 fp=0x40008778d0 sp=0x4000877860 pc=0x930198
gvisor.dev/gvisor/pkg/sentry/kernel.(*PIDNamespace).IncRef(...)
	/syzkaller/.cache/bazel/_bazel_root/2defe4792b6e1aac1936903102d81265/sandbox/linux-sandbox/28/execroot/_main/gopath/src/gvisor.dev/gvisor/pkg/sentry/kernel/threads.go:258
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).GetPIDNamespace(...)
	/syzkaller/.cache/bazel/_bazel_root/2defe4792b6e1aac1936903102d81265/sandbox/linux-sandbox/28/execroot/_main/gopath/src/gvisor.dev/gvisor/pkg/sentry/kernel/threads.go:577
gvisor.dev/gvisor/pkg/sentry/kernel.(*namespaceSet).initFromTask(0x4000877940, 0x8d340?, 0x4000f6d208, 0x20000000)
	/syzkaller/.cache/bazel/_bazel_root/2defe4792b6e1aac1936903102d81265/sandbox/linux-sandbox/28/execroot/_main/gopath/src/gvisor.dev/gvisor/pkg/sentry/kernel/task_clone.go:532 +0x2b4 fp=0x4000877900 sp=0x40008778d0 pc=0xc71104
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Setns(0x4000e80588, 0x4000fb8a80, 0x20000000)
	/syzkaller/.cache/bazel/_bazel_root/2defe4792b6e1aac1936903102d81265/sandbox/linux-sandbox/28/execroot/_main/gopath/src/gvisor.dev/gvisor/pkg/sentry/kernel/task_clone.go:612 +0x590 fp=0x40008779b0 sp=0x4000877900 pc=0xc724c0
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Setns(0x4000e80588, 0xbd?, {{0x3}, {0x20000000}, {0x0}, {0x0}, {0x0}, {0x0}})
	/syzkaller/.cache/bazel/_bazel_root/2defe4792b6e1aac1936903102d81265/sandbox/linux-sandbox/28/execroot/_main/gopath/src/gvisor.dev/gvisor/pkg/sentry/syscalls/linux/sys_thread.go:479 +0x26c fp=0x4000877a30 sp=0x40008779b0 pc=0x109e81c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0x4000e80588, 0x10c, {{0x3}, {0x20000000}, {0x0}, {0x0}, {0x0}, {0x0}})
	/syzkaller/.cache/bazel/_bazel_root/2defe4792b6e1aac1936903102d81265/sandbox/linux-sandbox/28/execroot/_main/gopath/src/gvisor.dev/gvisor/pkg/sentry/kernel/task_syscall.go:143 +0x12b4 fp=0x4000877c60 sp=0x4000877a30 pc=0xcbfc64
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0x4000e80588, 0x10c, {{0x3}, {0x20000000}, {0x0}, {0x0}, {0x0}, {0x0}})
	/syzkaller/.cache/bazel/_bazel_root/2defe4792b6e1aac1936903102d81265/sandbox/linux-sandbox/28/execroot/_main/gopath/src/gvisor.dev/gvisor/pkg/sentry/kernel/task_syscall.go:323 +0xb0 fp=0x4000877cc0 sp=0x4000877c60 pc=0xcc2e30
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0x4000e80588, 0x10c, {{0x3}, {0x20000000}, {0x0}, {0x0}, {0x0}, {0x0}})
	/syzkaller/.cache/bazel/_bazel_root/2defe4792b6e1aac1936903102d81265/sandbox/linux-sandbox/28/execroot/_main/gopath/src/gvisor.dev/gvisor/pkg/sentry/kernel/task_syscall.go:283 +0x14c fp=0x4000877d10 sp=0x4000877cc0 pc=0xcc1e7c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0x4000c87a00?)
	/syzkaller/.cache/bazel/_bazel_root/2defe4792b6e1aac1936903102d81265/sandbox/linux-sandbox/28/execroot/_main/gopath/src/gvisor.dev/gvisor/pkg/sentry/kernel/task_syscall.go:258 +0x8c8 fp=0x4000877df0 sp=0x4000877d10 pc=0xcc1658
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x4000ffb200?, 0x4000e80588)
	/syzkaller/.cache/bazel/_bazel_root/2defe4792b6e1aac1936903102d81265/sandbox/linux-sandbox/28/execroot/_main/gopath/src/gvisor.dev/gvisor/pkg/sentry/kernel/task_run.go:258 +0x3070 fp=0x4000877f10 sp=0x4000877df0 pc=0xca3fd0
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0x4000e80588, 0x1b8)
	/syzkaller/.cache/bazel/_bazel_root/2defe4792b6e1aac1936903102d81265/sandbox/linux-sandbox/28/execroot/_main/gopath/src/gvisor.dev/gvisor/pkg/sentry/kernel/task_run.go:89 +0x570 fp=0x4000877fb0 sp=0x4000877f10 pc=0xca0590
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1()
	/syzkaller/.cache/bazel/_bazel_root/2defe4792b6e1aac1936903102d81265/sandbox/linux-sandbox/28/execroot/_main/gopath/src/gvisor.dev/gvisor/pkg/sentry/kernel/task_start.go:416 +0x28 fp=0x4000877fd0 sp=0x4000877fb0 pc=0xcbc328
runtime.goexit({})
	/syzkaller/.cache/bazel/_bazel_root/2defe4792b6e1aac1936903102d81265/sandbox/linux-sandbox/28/execroot/_main/go/src/runtime/asm_arm64.s:1268 +0x4 fp=0x4000877fd0 sp=0x4000877fd0 pc=0x95b64
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 465
	/syzkaller/.cache/bazel/_bazel_root/2defe4792b6e1aac1936903102d81265/sandbox/linux-sandbox/28/execroot/_main/gopath/src/gvisor.dev/gvisor/pkg/sentry/kernel/task_start.go:416 +0x16c