Merge release-20200518.0-45-g0bc022b7 (automated)

42 files changed, 288 insertions, 2 deletions

diff --git a/pkg/sentry/syscalls/linux/linux_amd64_state_autogen.go b/pkg/sentry/syscalls/linux/linux_amd64_state_autogen.go
index b3e3be0b6..b3e3be0b6 100755..100644
--- a/pkg/sentry/syscalls/linux/linux_amd64_state_autogen.go
+++ b/pkg/sentry/syscalls/linux/linux_amd64_state_autogen.go
diff --git a/pkg/sentry/syscalls/linux/linux_arm64_state_autogen.go b/pkg/sentry/syscalls/linux/linux_arm64_state_autogen.go
index f03e36ddc..f03e36ddc 100755..100644
--- a/pkg/sentry/syscalls/linux/linux_arm64_state_autogen.go
+++ b/pkg/sentry/syscalls/linux/linux_arm64_state_autogen.go
diff --git a/pkg/sentry/syscalls/linux/linux_state_autogen.go b/pkg/sentry/syscalls/linux/linux_state_autogen.go
index cbae0a871..cbae0a871 100755..100644
--- a/pkg/sentry/syscalls/linux/linux_state_autogen.go
+++ b/pkg/sentry/syscalls/linux/linux_state_autogen.go
diff --git a/pkg/sentry/syscalls/linux/sys_clone_amd64.go b/pkg/sentry/syscalls/linux/sys_clone_amd64.go
index dd43cf18d..dd43cf18d 100755..100644
--- a/pkg/sentry/syscalls/linux/sys_clone_amd64.go
+++ b/pkg/sentry/syscalls/linux/sys_clone_amd64.go
diff --git a/pkg/sentry/syscalls/linux/sys_clone_arm64.go b/pkg/sentry/syscalls/linux/sys_clone_arm64.go
index cf68a8949..cf68a8949 100755..100644
--- a/pkg/sentry/syscalls/linux/sys_clone_arm64.go
+++ b/pkg/sentry/syscalls/linux/sys_clone_arm64.go
diff --git a/pkg/sentry/syscalls/linux/sys_rseq.go b/pkg/sentry/syscalls/linux/sys_rseq.go
index 90db10ea6..90db10ea6 100755..100644
--- a/pkg/sentry/syscalls/linux/sys_rseq.go
+++ b/pkg/sentry/syscalls/linux/sys_rseq.go
diff --git a/pkg/sentry/syscalls/linux/sys_stat_amd64.go b/pkg/sentry/syscalls/linux/sys_stat_amd64.go
index 0a04a6113..0a04a6113 100755..100644
--- a/pkg/sentry/syscalls/linux/sys_stat_amd64.go
+++ b/pkg/sentry/syscalls/linux/sys_stat_amd64.go
diff --git a/pkg/sentry/syscalls/linux/sys_stat_arm64.go b/pkg/sentry/syscalls/linux/sys_stat_arm64.go
index 5a3b1bfad..5a3b1bfad 100755..100644
--- a/pkg/sentry/syscalls/linux/sys_stat_arm64.go
+++ b/pkg/sentry/syscalls/linux/sys_stat_arm64.go
diff --git a/pkg/sentry/syscalls/linux/sys_tls_amd64.go b/pkg/sentry/syscalls/linux/sys_tls_amd64.go
index b3eb96a1c..b3eb96a1c 100755..100644
--- a/pkg/sentry/syscalls/linux/sys_tls_amd64.go
+++ b/pkg/sentry/syscalls/linux/sys_tls_amd64.go
diff --git a/pkg/sentry/syscalls/linux/sys_tls_arm64.go b/pkg/sentry/syscalls/linux/sys_tls_arm64.go
index fb08a356e..fb08a356e 100755..100644
--- a/pkg/sentry/syscalls/linux/sys_tls_arm64.go
+++ b/pkg/sentry/syscalls/linux/sys_tls_arm64.go
diff --git a/pkg/sentry/syscalls/linux/sys_xattr.go b/pkg/sentry/syscalls/linux/sys_xattr.go
index 2de5e3422..2de5e3422 100755..100644
--- a/pkg/sentry/syscalls/linux/sys_xattr.go
+++ b/pkg/sentry/syscalls/linux/sys_xattr.go
diff --git a/pkg/sentry/syscalls/linux/vfs2/epoll.go b/pkg/sentry/syscalls/linux/vfs2/epoll.go
index 34c90ae3e..34c90ae3e 100755..100644
--- a/pkg/sentry/syscalls/linux/vfs2/epoll.go
+++ b/pkg/sentry/syscalls/linux/vfs2/epoll.go
diff --git a/pkg/sentry/syscalls/linux/vfs2/eventfd.go b/pkg/sentry/syscalls/linux/vfs2/eventfd.go
index aff1a2070..aff1a2070 100755..100644
--- a/pkg/sentry/syscalls/linux/vfs2/eventfd.go
+++ b/pkg/sentry/syscalls/linux/vfs2/eventfd.go
diff --git a/pkg/sentry/syscalls/linux/vfs2/execve.go b/pkg/sentry/syscalls/linux/vfs2/execve.go
index aef0078a8..aef0078a8 100755..100644
--- a/pkg/sentry/syscalls/linux/vfs2/execve.go
+++ b/pkg/sentry/syscalls/linux/vfs2/execve.go
diff --git a/pkg/sentry/syscalls/linux/vfs2/fd.go b/pkg/sentry/syscalls/linux/vfs2/fd.go
index ca0f7fd1e..ca0f7fd1e 100755..100644
--- a/pkg/sentry/syscalls/linux/vfs2/fd.go
+++ b/pkg/sentry/syscalls/linux/vfs2/fd.go
diff --git a/pkg/sentry/syscalls/linux/vfs2/filesystem.go b/pkg/sentry/syscalls/linux/vfs2/filesystem.go
index 46d3e189c..46d3e189c 100755..100644
--- a/pkg/sentry/syscalls/linux/vfs2/filesystem.go
+++ b/pkg/sentry/syscalls/linux/vfs2/filesystem.go
diff --git a/pkg/sentry/syscalls/linux/vfs2/fscontext.go b/pkg/sentry/syscalls/linux/vfs2/fscontext.go
index 317409a18..317409a18 100755..100644
--- a/pkg/sentry/syscalls/linux/vfs2/fscontext.go
+++ b/pkg/sentry/syscalls/linux/vfs2/fscontext.go
diff --git a/pkg/sentry/syscalls/linux/vfs2/getdents.go b/pkg/sentry/syscalls/linux/vfs2/getdents.go
index c7c7bf7ce..c7c7bf7ce 100755..100644
--- a/pkg/sentry/syscalls/linux/vfs2/getdents.go
+++ b/pkg/sentry/syscalls/linux/vfs2/getdents.go
diff --git a/pkg/sentry/syscalls/linux/vfs2/ioctl.go b/pkg/sentry/syscalls/linux/vfs2/ioctl.go
index 5a2418da9..5a2418da9 100755..100644
--- a/pkg/sentry/syscalls/linux/vfs2/ioctl.go
+++ b/pkg/sentry/syscalls/linux/vfs2/ioctl.go
diff --git a/pkg/sentry/syscalls/linux/vfs2/memfd.go b/pkg/sentry/syscalls/linux/vfs2/memfd.go
index bbe248d17..bbe248d17 100755..100644
--- a/pkg/sentry/syscalls/linux/vfs2/memfd.go
+++ b/pkg/sentry/syscalls/linux/vfs2/memfd.go
diff --git a/pkg/sentry/syscalls/linux/vfs2/mmap.go b/pkg/sentry/syscalls/linux/vfs2/mmap.go
index 60a43f0a0..60a43f0a0 100755..100644
--- a/pkg/sentry/syscalls/linux/vfs2/mmap.go
+++ b/pkg/sentry/syscalls/linux/vfs2/mmap.go
diff --git a/pkg/sentry/syscalls/linux/vfs2/path.go b/pkg/sentry/syscalls/linux/vfs2/path.go
index 97da6c647..97da6c647 100755..100644
--- a/pkg/sentry/syscalls/linux/vfs2/path.go
+++ b/pkg/sentry/syscalls/linux/vfs2/path.go
diff --git a/pkg/sentry/syscalls/linux/vfs2/pipe.go b/pkg/sentry/syscalls/linux/vfs2/pipe.go
index 4a01e4209..4a01e4209 100755..100644
--- a/pkg/sentry/syscalls/linux/vfs2/pipe.go
+++ b/pkg/sentry/syscalls/linux/vfs2/pipe.go
diff --git a/pkg/sentry/syscalls/linux/vfs2/poll.go b/pkg/sentry/syscalls/linux/vfs2/poll.go
index ff1b25d7b..ff1b25d7b 100755..100644
--- a/pkg/sentry/syscalls/linux/vfs2/poll.go
+++ b/pkg/sentry/syscalls/linux/vfs2/poll.go
diff --git a/pkg/sentry/syscalls/linux/vfs2/read_write.go b/pkg/sentry/syscalls/linux/vfs2/read_write.go
index 3a7ef24f5..3a7ef24f5 100755..100644
--- a/pkg/sentry/syscalls/linux/vfs2/read_write.go
+++ b/pkg/sentry/syscalls/linux/vfs2/read_write.go
diff --git a/pkg/sentry/syscalls/linux/vfs2/setstat.go b/pkg/sentry/syscalls/linux/vfs2/setstat.go
index 09ecfed26..09ecfed26 100755..100644
--- a/pkg/sentry/syscalls/linux/vfs2/setstat.go
+++ b/pkg/sentry/syscalls/linux/vfs2/setstat.go
diff --git a/pkg/sentry/syscalls/linux/vfs2/signal.go b/pkg/sentry/syscalls/linux/vfs2/signal.go
index 623992f6f..623992f6f 100755..100644
--- a/pkg/sentry/syscalls/linux/vfs2/signal.go
+++ b/pkg/sentry/syscalls/linux/vfs2/signal.go
diff --git a/pkg/sentry/syscalls/linux/vfs2/socket.go b/pkg/sentry/syscalls/linux/vfs2/socket.go
index 10b668477..10b668477 100755..100644
--- a/pkg/sentry/syscalls/linux/vfs2/socket.go
+++ b/pkg/sentry/syscalls/linux/vfs2/socket.go
diff --git a/pkg/sentry/syscalls/linux/vfs2/splice.go b/pkg/sentry/syscalls/linux/vfs2/splice.go
new file mode 100644
index 000000000..8f3c22a02
--- /dev/null
+++ b/pkg/sentry/syscalls/linux/vfs2/splice.go
@@ -0,0 +1,286 @@
+// Copyright 2020 The gVisor Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package vfs2
+
+import (
+	"gvisor.dev/gvisor/pkg/abi/linux"
+	"gvisor.dev/gvisor/pkg/sentry/arch"
+	"gvisor.dev/gvisor/pkg/sentry/kernel"
+	"gvisor.dev/gvisor/pkg/sentry/kernel/pipe"
+	"gvisor.dev/gvisor/pkg/sentry/vfs"
+	"gvisor.dev/gvisor/pkg/syserror"
+	"gvisor.dev/gvisor/pkg/waiter"
+)
+
+// Splice implements Linux syscall splice(2).
+func Splice(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.SyscallControl, error) {
+	inFD := args[0].Int()
+	inOffsetPtr := args[1].Pointer()
+	outFD := args[2].Int()
+	outOffsetPtr := args[3].Pointer()
+	count := int64(args[4].SizeT())
+	flags := args[5].Int()
+
+	if count == 0 {
+		return 0, nil, nil
+	}
+	if count > int64(kernel.MAX_RW_COUNT) {
+		count = int64(kernel.MAX_RW_COUNT)
+	}
+
+	// Check for invalid flags.
+	if flags&^(linux.SPLICE_F_MOVE|linux.SPLICE_F_NONBLOCK|linux.SPLICE_F_MORE|linux.SPLICE_F_GIFT) != 0 {
+		return 0, nil, syserror.EINVAL
+	}
+
+	// Get file descriptions.
+	inFile := t.GetFileVFS2(inFD)
+	if inFile == nil {
+		return 0, nil, syserror.EBADF
+	}
+	defer inFile.DecRef()
+	outFile := t.GetFileVFS2(outFD)
+	if outFile == nil {
+		return 0, nil, syserror.EBADF
+	}
+	defer outFile.DecRef()
+
+	// Check that both files support the required directionality.
+	if !inFile.IsReadable() || !outFile.IsWritable() {
+		return 0, nil, syserror.EBADF
+	}
+
+	// The operation is non-blocking if anything is non-blocking.
+	//
+	// N.B. This is a rather simplistic heuristic that avoids some
+	// poor edge case behavior since the exact semantics here are
+	// underspecified and vary between versions of Linux itself.
+	nonBlock := ((inFile.StatusFlags()|outFile.StatusFlags())&linux.O_NONBLOCK != 0) || (flags&linux.SPLICE_F_NONBLOCK != 0)
+
+	// At least one file description must represent a pipe.
+	inPipeFD, inIsPipe := inFile.Impl().(*pipe.VFSPipeFD)
+	outPipeFD, outIsPipe := outFile.Impl().(*pipe.VFSPipeFD)
+	if !inIsPipe && !outIsPipe {
+		return 0, nil, syserror.EINVAL
+	}
+
+	// Copy in offsets.
+	inOffset := int64(-1)
+	if inOffsetPtr != 0 {
+		if inIsPipe {
+			return 0, nil, syserror.ESPIPE
+		}
+		if inFile.Options().DenyPRead {
+			return 0, nil, syserror.EINVAL
+		}
+		if _, err := t.CopyIn(inOffsetPtr, &inOffset); err != nil {
+			return 0, nil, err
+		}
+		if inOffset < 0 {
+			return 0, nil, syserror.EINVAL
+		}
+	}
+	outOffset := int64(-1)
+	if outOffsetPtr != 0 {
+		if outIsPipe {
+			return 0, nil, syserror.ESPIPE
+		}
+		if outFile.Options().DenyPWrite {
+			return 0, nil, syserror.EINVAL
+		}
+		if _, err := t.CopyIn(outOffsetPtr, &outOffset); err != nil {
+			return 0, nil, err
+		}
+		if outOffset < 0 {
+			return 0, nil, syserror.EINVAL
+		}
+	}
+
+	// Move data.
+	var (
+		n     int64
+		err   error
+		inCh  chan struct{}
+		outCh chan struct{}
+	)
+	for {
+		// If both input and output are pipes, delegate to the pipe
+		// implementation. Otherwise, exactly one end is a pipe, which we
+		// ensure is consistently ordered after the non-pipe FD's locks by
+		// passing the pipe FD as usermem.IO to the non-pipe end.
+		switch {
+		case inIsPipe && outIsPipe:
+			n, err = pipe.Splice(t, outPipeFD, inPipeFD, count)
+		case inIsPipe:
+			if outOffset != -1 {
+				n, err = outFile.PWrite(t, inPipeFD.IOSequence(count), outOffset, vfs.WriteOptions{})
+				outOffset += n
+			} else {
+				n, err = outFile.Write(t, inPipeFD.IOSequence(count), vfs.WriteOptions{})
+			}
+		case outIsPipe:
+			if inOffset != -1 {
+				n, err = inFile.PRead(t, outPipeFD.IOSequence(count), inOffset, vfs.ReadOptions{})
+				inOffset += n
+			} else {
+				n, err = inFile.Read(t, outPipeFD.IOSequence(count), vfs.ReadOptions{})
+			}
+		}
+		if n != 0 || err != syserror.ErrWouldBlock || nonBlock {
+			break
+		}
+
+		// Note that the blocking behavior here is a bit different than the
+		// normal pattern. Because we need to have both data to read and data
+		// to write simultaneously, we actually explicitly block on both of
+		// these cases in turn before returning to the splice operation.
+		if inFile.Readiness(eventMaskRead)&eventMaskRead == 0 {
+			if inCh == nil {
+				inCh = make(chan struct{}, 1)
+				inW, _ := waiter.NewChannelEntry(inCh)
+				inFile.EventRegister(&inW, eventMaskRead)
+				defer inFile.EventUnregister(&inW)
+				continue // Need to refresh readiness.
+			}
+			if err = t.Block(inCh); err != nil {
+				break
+			}
+		}
+		if outFile.Readiness(eventMaskWrite)&eventMaskWrite == 0 {
+			if outCh == nil {
+				outCh = make(chan struct{}, 1)
+				outW, _ := waiter.NewChannelEntry(outCh)
+				outFile.EventRegister(&outW, eventMaskWrite)
+				defer outFile.EventUnregister(&outW)
+				continue // Need to refresh readiness.
+			}
+			if err = t.Block(outCh); err != nil {
+				break
+			}
+		}
+	}
+
+	// Copy updated offsets out.
+	if inOffsetPtr != 0 {
+		if _, err := t.CopyOut(inOffsetPtr, &inOffset); err != nil {
+			return 0, nil, err
+		}
+	}
+	if outOffsetPtr != 0 {
+		if _, err := t.CopyOut(outOffsetPtr, &outOffset); err != nil {
+			return 0, nil, err
+		}
+	}
+
+	if n == 0 {
+		return 0, nil, err
+	}
+	return uintptr(n), nil, nil
+}
+
+// Tee implements Linux syscall tee(2).
+func Tee(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.SyscallControl, error) {
+	inFD := args[0].Int()
+	outFD := args[1].Int()
+	count := int64(args[2].SizeT())
+	flags := args[3].Int()
+
+	if count == 0 {
+		return 0, nil, nil
+	}
+	if count > int64(kernel.MAX_RW_COUNT) {
+		count = int64(kernel.MAX_RW_COUNT)
+	}
+
+	// Check for invalid flags.
+	if flags&^(linux.SPLICE_F_MOVE|linux.SPLICE_F_NONBLOCK|linux.SPLICE_F_MORE|linux.SPLICE_F_GIFT) != 0 {
+		return 0, nil, syserror.EINVAL
+	}
+
+	// Get file descriptions.
+	inFile := t.GetFileVFS2(inFD)
+	if inFile == nil {
+		return 0, nil, syserror.EBADF
+	}
+	defer inFile.DecRef()
+	outFile := t.GetFileVFS2(outFD)
+	if outFile == nil {
+		return 0, nil, syserror.EBADF
+	}
+	defer outFile.DecRef()
+
+	// Check that both files support the required directionality.
+	if !inFile.IsReadable() || !outFile.IsWritable() {
+		return 0, nil, syserror.EBADF
+	}
+
+	// The operation is non-blocking if anything is non-blocking.
+	//
+	// N.B. This is a rather simplistic heuristic that avoids some
+	// poor edge case behavior since the exact semantics here are
+	// underspecified and vary between versions of Linux itself.
+	nonBlock := ((inFile.StatusFlags()|outFile.StatusFlags())&linux.O_NONBLOCK != 0) || (flags&linux.SPLICE_F_NONBLOCK != 0)
+
+	// Both file descriptions must represent pipes.
+	inPipeFD, inIsPipe := inFile.Impl().(*pipe.VFSPipeFD)
+	outPipeFD, outIsPipe := outFile.Impl().(*pipe.VFSPipeFD)
+	if !inIsPipe || !outIsPipe {
+		return 0, nil, syserror.EINVAL
+	}
+
+	// Copy data.
+	var (
+		inCh  chan struct{}
+		outCh chan struct{}
+	)
+	for {
+		n, err := pipe.Tee(t, outPipeFD, inPipeFD, count)
+		if n != 0 {
+			return uintptr(n), nil, nil
+		}
+		if err != syserror.ErrWouldBlock || nonBlock {
+			return 0, nil, err
+		}
+
+		// Note that the blocking behavior here is a bit different than the
+		// normal pattern. Because we need to have both data to read and data
+		// to write simultaneously, we actually explicitly block on both of
+		// these cases in turn before returning to the tee operation.
+		if inFile.Readiness(eventMaskRead)&eventMaskRead == 0 {
+			if inCh == nil {
+				inCh = make(chan struct{}, 1)
+				inW, _ := waiter.NewChannelEntry(inCh)
+				inFile.EventRegister(&inW, eventMaskRead)
+				defer inFile.EventUnregister(&inW)
+				continue // Need to refresh readiness.
+			}
+			if err := t.Block(inCh); err != nil {
+				return 0, nil, err
+			}
+		}
+		if outFile.Readiness(eventMaskWrite)&eventMaskWrite == 0 {
+			if outCh == nil {
+				outCh = make(chan struct{}, 1)
+				outW, _ := waiter.NewChannelEntry(outCh)
+				outFile.EventRegister(&outW, eventMaskWrite)
+				defer outFile.EventUnregister(&outW)
+				continue // Need to refresh readiness.
+			}
+			if err := t.Block(outCh); err != nil {
+				return 0, nil, err
+			}
+		}
+	}
+}
diff --git a/pkg/sentry/syscalls/linux/vfs2/stat.go b/pkg/sentry/syscalls/linux/vfs2/stat.go
index bb1d5cac4..bb1d5cac4 100755..100644
--- a/pkg/sentry/syscalls/linux/vfs2/stat.go
+++ b/pkg/sentry/syscalls/linux/vfs2/stat.go
diff --git a/pkg/sentry/syscalls/linux/vfs2/stat_amd64.go b/pkg/sentry/syscalls/linux/vfs2/stat_amd64.go
index 2da538fc6..2da538fc6 100755..100644
--- a/pkg/sentry/syscalls/linux/vfs2/stat_amd64.go
+++ b/pkg/sentry/syscalls/linux/vfs2/stat_amd64.go
diff --git a/pkg/sentry/syscalls/linux/vfs2/stat_arm64.go b/pkg/sentry/syscalls/linux/vfs2/stat_arm64.go
index 88b9c7627..88b9c7627 100755..100644
--- a/pkg/sentry/syscalls/linux/vfs2/stat_arm64.go
+++ b/pkg/sentry/syscalls/linux/vfs2/stat_arm64.go
diff --git a/pkg/sentry/syscalls/linux/vfs2/sync.go b/pkg/sentry/syscalls/linux/vfs2/sync.go
index 365250b0b..365250b0b 100755..100644
--- a/pkg/sentry/syscalls/linux/vfs2/sync.go
+++ b/pkg/sentry/syscalls/linux/vfs2/sync.go
diff --git a/pkg/sentry/syscalls/linux/vfs2/timerfd.go b/pkg/sentry/syscalls/linux/vfs2/timerfd.go
index 5ac79bc09..5ac79bc09 100755..100644
--- a/pkg/sentry/syscalls/linux/vfs2/timerfd.go
+++ b/pkg/sentry/syscalls/linux/vfs2/timerfd.go
diff --git a/pkg/sentry/syscalls/linux/vfs2/vfs2.go b/pkg/sentry/syscalls/linux/vfs2/vfs2.go
index a332d01bd..083fdcf82 100755..100644
--- a/pkg/sentry/syscalls/linux/vfs2/vfs2.go
+++ b/pkg/sentry/syscalls/linux/vfs2/vfs2.go
@@ -134,8 +134,8 @@ func Override() {
 	s.Table[269] = syscalls.Supported("faccessat", Faccessat)
 	s.Table[270] = syscalls.Supported("pselect", Pselect)
 	s.Table[271] = syscalls.Supported("ppoll", Ppoll)
-	delete(s.Table, 275) // splice
-	delete(s.Table, 276) // tee
+	s.Table[275] = syscalls.Supported("splice", Splice)
+	s.Table[276] = syscalls.Supported("tee", Tee)
 	s.Table[277] = syscalls.Supported("sync_file_range", SyncFileRange)
 	s.Table[280] = syscalls.Supported("utimensat", Utimensat)
 	s.Table[281] = syscalls.Supported("epoll_pwait", EpollPwait)
diff --git a/pkg/sentry/syscalls/linux/vfs2/vfs2_abi_autogen_unsafe.go b/pkg/sentry/syscalls/linux/vfs2/vfs2_abi_autogen_unsafe.go
index 372fbcd8e..372fbcd8e 100755..100644
--- a/pkg/sentry/syscalls/linux/vfs2/vfs2_abi_autogen_unsafe.go
+++ b/pkg/sentry/syscalls/linux/vfs2/vfs2_abi_autogen_unsafe.go
diff --git a/pkg/sentry/syscalls/linux/vfs2/vfs2_amd64_abi_autogen_unsafe.go b/pkg/sentry/syscalls/linux/vfs2/vfs2_amd64_abi_autogen_unsafe.go
index 204c7ceaf..204c7ceaf 100755..100644
--- a/pkg/sentry/syscalls/linux/vfs2/vfs2_amd64_abi_autogen_unsafe.go
+++ b/pkg/sentry/syscalls/linux/vfs2/vfs2_amd64_abi_autogen_unsafe.go
diff --git a/pkg/sentry/syscalls/linux/vfs2/vfs2_amd64_state_autogen.go b/pkg/sentry/syscalls/linux/vfs2/vfs2_amd64_state_autogen.go
index 7f5556f9c..7f5556f9c 100755..100644
--- a/pkg/sentry/syscalls/linux/vfs2/vfs2_amd64_state_autogen.go
+++ b/pkg/sentry/syscalls/linux/vfs2/vfs2_amd64_state_autogen.go
diff --git a/pkg/sentry/syscalls/linux/vfs2/vfs2_arm64_abi_autogen_unsafe.go b/pkg/sentry/syscalls/linux/vfs2/vfs2_arm64_abi_autogen_unsafe.go
index 08e10d735..08e10d735 100755..100644
--- a/pkg/sentry/syscalls/linux/vfs2/vfs2_arm64_abi_autogen_unsafe.go
+++ b/pkg/sentry/syscalls/linux/vfs2/vfs2_arm64_abi_autogen_unsafe.go
diff --git a/pkg/sentry/syscalls/linux/vfs2/vfs2_arm64_state_autogen.go b/pkg/sentry/syscalls/linux/vfs2/vfs2_arm64_state_autogen.go
index 3e3862045..3e3862045 100755..100644
--- a/pkg/sentry/syscalls/linux/vfs2/vfs2_arm64_state_autogen.go
+++ b/pkg/sentry/syscalls/linux/vfs2/vfs2_arm64_state_autogen.go
diff --git a/pkg/sentry/syscalls/linux/vfs2/vfs2_state_autogen.go b/pkg/sentry/syscalls/linux/vfs2/vfs2_state_autogen.go
index 570100331..570100331 100755..100644
--- a/pkg/sentry/syscalls/linux/vfs2/vfs2_state_autogen.go
+++ b/pkg/sentry/syscalls/linux/vfs2/vfs2_state_autogen.go
diff --git a/pkg/sentry/syscalls/linux/vfs2/xattr.go b/pkg/sentry/syscalls/linux/vfs2/xattr.go
index af455d5c1..af455d5c1 100755..100644
--- a/pkg/sentry/syscalls/linux/vfs2/xattr.go
+++ b/pkg/sentry/syscalls/linux/vfs2/xattr.go