syzbot

WARNING: DATA RACE
Read at 0x00c002513650 by goroutine 401:
  gvisor.dev/gvisor/pkg/refs.(*AtomicRefCount).DecRefWithDestructor()
      bazel-out/k8-fastbuild/bin/pkg/refs/weak_ref_list.go:157 +0xf1
  gvisor.dev/gvisor/pkg/sentry/fs.(*File).DecRef()
      pkg/sentry/fs/file.go:146 +0x5d
  gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Readv()
      pkg/sentry/syscalls/linux/sys_read.go:182 +0x3a0
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall()
      pkg/sentry/kernel/task_syscall.go:170 +0x455
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke()
      pkg/sentry/kernel/task_syscall.go:291 +0xb4
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter()
      pkg/sentry/kernel/task_syscall.go:252 +0x109
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall()
      pkg/sentry/kernel/task_syscall.go:227 +0x1b3
  gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute()
      pkg/sentry/kernel/task_run.go:232 +0x1aaf
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run()
      pkg/sentry/kernel/task_run.go:92 +0x308

Previous write at 0x00c002513650 by goroutine 389:
  gvisor.dev/gvisor/pkg/refs.(*AtomicRefCount).DecRefWithDestructor()
      bazel-out/k8-fastbuild/bin/pkg/refs/weak_ref_list.go:167 +0x116
  gvisor.dev/gvisor/pkg/sentry/fs.(*File).DecRef()
      pkg/sentry/fs/file.go:146 +0x5d
  gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Close()
      pkg/sentry/syscalls/linux/sys_file.go:777 +0x1e0
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall()
      pkg/sentry/kernel/task_syscall.go:170 +0x455
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke()
      pkg/sentry/kernel/task_syscall.go:291 +0xb4
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter()
      pkg/sentry/kernel/task_syscall.go:252 +0x109
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall()
      pkg/sentry/kernel/task_syscall.go:227 +0x1b3
  gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute()
      pkg/sentry/kernel/task_run.go:232 +0x1aaf
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run()
      pkg/sentry/kernel/task_run.go:92 +0x308