diff options
| author | Miklos Szeredi <mszeredi@redhat.com> | 2017-02-16 17:49:02 +0100 |
|---|---|---|
| committer | Sasha Levin <alexander.levin@verizon.com> | 2017-03-06 17:31:14 -0500 |
| commit | 4cc0d2f4a8c1b97771f16ce65848dd30e5731df7 (patch) | |
| tree | bf4ae07fed3e46a6b59f16bcd645d4c3a40e9bf4 | |
| parent | 64c46de968deccbb7a9bbd42c93f0399aea1036c (diff) | |
vfs: fix uninitialized flags in splice_to_pipe()
[ Upstream commit 5a81e6a171cdbd1fa8bc1fdd80c23d3d71816fac ]
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>
Cc: <stable@vger.kernel.org> # 2.6.17+
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
| -rw-r--r-- | fs/splice.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/splice.c b/fs/splice.c index e7522c486068..6ec6054df138 100644 --- a/fs/splice.c +++ b/fs/splice.c @@ -211,6 +211,7 @@ ssize_t splice_to_pipe(struct pipe_inode_info *pipe, buf->len = spd->partial[page_nr].len; buf->private = spd->partial[page_nr].private; buf->ops = spd->ops; + buf->flags = 0; if (spd->flags & SPLICE_F_GIFT) buf->flags |= PIPE_BUF_FLAG_GIFT; |