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| author | Miklos Szeredi <mszeredi@redhat.com> | 2017-02-16 17:49:02 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-02-23 17:44:35 +0100 |
| commit | 166a2464cdcf20d4809cc8bb4004241816393a7f (patch) | |
| tree | ca71852aae905989f996b07528f32f3f18a32690 | |
| parent | eee1550b3e89217321b63efba64f03b2546180d6 (diff) | |
| download | linux-rpi3-166a2464cdcf20d4809cc8bb4004241816393a7f.tar.gz linux-rpi3-166a2464cdcf20d4809cc8bb4004241816393a7f.tar.bz2 linux-rpi3-166a2464cdcf20d4809cc8bb4004241816393a7f.zip | |
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>
| -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 63b8f54485dc..8dd79ecfd383 100644 --- a/fs/splice.c +++ b/fs/splice.c @@ -203,6 +203,7 @@ 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; pipe->nrbufs++; page_nr++; |