syzbot

WARNING: DATA RACE
Read at 0x00c000bbbe47 by goroutine 2277:
  encoding/binary.littleEndian.Uint32()
      GOROOT/src/encoding/binary/binary.go:80 +0x2f7
  gvisor.dev/gvisor/pkg/bpf.load32[go.shape.uint32]()
      pkg/bpf/input_bytes.go:64 +0x29d
  gvisor.dev/gvisor/pkg/bpf.InstrumentedExec[go.shape.uint32]()
      pkg/bpf/interpreter.go:535 +0x649
  gvisor.dev/gvisor/pkg/sentry/kernel.checkFilterCacheability()
      pkg/sentry/kernel/seccomp.go:212 +0x2f6
  gvisor.dev/gvisor/pkg/sentry/kernel.(*taskSeccomp).populateCache()
      pkg/sentry/kernel/seccomp.go:248 +0x2a4
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).AppendSyscallFilter()
      pkg/sentry/kernel/seccomp.go:301 +0x7f3
  gvisor.dev/gvisor/pkg/sentry/syscalls/linux.seccomp()
      pkg/sentry/syscalls/linux/sys_seccomp.go:76 +0x3c4
  gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Seccomp()
      pkg/sentry/syscalls/linux/sys_seccomp.go:81 +0x35
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall()
      pkg/sentry/kernel/task_syscall.go:142 +0x8b4
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke()
      pkg/sentry/kernel/task_syscall.go:322 +0x6b
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter()
      pkg/sentry/kernel/task_syscall.go:282 +0x86
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall()
      pkg/sentry/kernel/task_syscall.go:257 +0x4ef
  gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute()
      pkg/sentry/kernel/task_run.go:269 +0x1e07
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run()
      pkg/sentry/kernel/task_run.go:98 +0x43a
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
      pkg/sentry/kernel/task_start.go:392 +0x44

Previous write at 0x00c000bbbe40 by goroutine 2271:
  runtime.slicecopy()
      GOROOT/src/runtime/slice.go:310 +0x0
  gvisor.dev/gvisor/pkg/safemem.Copy()
      pkg/safemem/block_unsafe.go:195 +0x2a8
  gvisor.dev/gvisor/pkg/safemem.CopySeq()
      pkg/safemem/seq_unsafe.go:279 +0x227
  gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).CopyIn.func1()
      pkg/sentry/mm/io.go:164 +0xad
  gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).withInternalMappings()
      pkg/sentry/mm/io.go:522 +0x186
  gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).CopyIn()
      pkg/sentry/mm/io.go:163 +0x264
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).CopyInBytes()
      pkg/sentry/kernel/task_usermem.go:57 +0x91
  gvisor.dev/gvisor/pkg/sentry/syscalls/linux.copyTimespecIn()
      pkg/sentry/syscalls/linux/timespec.go:32 +0x84
  gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Futex()
      pkg/sentry/syscalls/linux/sys_futex.go:192 +0x4b4
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall()
      pkg/sentry/kernel/task_syscall.go:142 +0x8b4
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke()
      pkg/sentry/kernel/task_syscall.go:322 +0x6b
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter()
      pkg/sentry/kernel/task_syscall.go:282 +0x86
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall()
      pkg/sentry/kernel/task_syscall.go:257 +0x4ef
  gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute()
      pkg/sentry/kernel/task_run.go:269 +0x1e07
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run()
      pkg/sentry/kernel/task_run.go:98 +0x43a
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
      pkg/sentry/kernel/task_start.go:392 +0x44