tree ca71852aae905989f996b07528f32f3f18a32690
parent eee1550b3e89217321b63efba64f03b2546180d6
author Miklos Szeredi <mszeredi@redhat.com> 1487263742 +0100
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1487868275 +0100

vfs: fix uninitialized flags in splice_to_pipe()

commit 5a81e6a171cdbd1fa8bc1fdd80c23d3d71816fac upstream.

Flags (PIPE_BUF_FLAG_PACKET, PIPE_BUF_FLAG_GIFT) could remain on the
unused part of the pipe ring buffer.  Previously splice_to_pipe() left
the flags value alone, which could result in incorrect behavior.

Uninitialized flags appears to have been there from the introduction of
the splice syscall.

Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>