diff --git a/g3doc/user_guide/compatibility.md b/g3doc/user_guide/compatibility.md
index ef50c0147..a10f5c940 100644
--- a/g3doc/user_guide/compatibility.md
+++ b/g3doc/user_guide/compatibility.md
@@ -67,7 +67,7 @@ Most common utilities work. Note that:
 | gcore      | Working.                                                                                            |
 | gdb        | Working.                                                                                            |
 | gosu       | Working.                                                                                            |
-| grep       | Working (unless stdin is a pipe and stdout is /dev/null).                                           |
+| grep       | Working.                                                                                            |
 | ifconfig   | Works partially, like ip. Full support [in progress](https://gvisor.dev/issue/578).                 |
 | ip         | Some subcommands work (e.g. addr, route). Full support [in progress](https://gvisor.dev/issue/578). |
 | less       | Working.                                                                                            |
diff --git a/pkg/sentry/kernel/pipe/vfs.go b/pkg/sentry/kernel/pipe/vfs.go
index 3d58249b7..32527e045 100644
--- a/pkg/sentry/kernel/pipe/vfs.go
+++ b/pkg/sentry/kernel/pipe/vfs.go
@@ -277,6 +277,13 @@ func (fd *VFSPipeFD) SpliceToNonPipe(ctx context.Context, out *vfs.FileDescripti
 		fd.pipe.consumeLocked(n)
 	}
 
+	// Implementations of out.[P]Write() that ignore written data (e.g.
+	// /dev/null) may skip calling src.CopyIn[To]() and therefore miss getting
+	// ErrWouldBlock from Pipe.peekLocked().
+	if n == 0 && err == nil && fd.pipe.size == 0 && fd.pipe.HasWriters() {
+		err = linuxerr.ErrWouldBlock
+	}
+
 	fd.pipe.mu.Unlock()
 
 	if n > 0 {
diff --git a/test/syscalls/linux/splice.cc b/test/syscalls/linux/splice.cc
index f49ea4a7a..4d8e6cc73 100644
--- a/test/syscalls/linux/splice.cc
+++ b/test/syscalls/linux/splice.cc
@@ -921,6 +921,19 @@ TEST(SpliceTest, FromPipeWithConcurrentIo) {
   }
 }
 
+// Regression test for #9736.
+TEST(SpliceTest, FromEmptyPipeWithWriterToDevNull) {
+  int fds[2];
+  ASSERT_THAT(pipe(fds), SyscallSucceeds());
+  const FileDescriptor rfd(fds[0]);
+  const FileDescriptor wfd(fds[1]);
+  const FileDescriptor out_fd =
+      ASSERT_NO_ERRNO_AND_VALUE(Open("/dev/null", O_WRONLY));
+  ASSERT_THAT(
+      splice(rfd.get(), nullptr, out_fd.get(), nullptr, 1, SPLICE_F_NONBLOCK),
+      SyscallFailsWithErrno(EAGAIN));
+}
+
 }  // namespace
 
 }  // namespace testing