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authorMiklos Szeredi <mszeredi@redhat.com>2017-02-16 17:49:02 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2017-02-16 09:09:02 -0800
commit5a81e6a171cdbd1fa8bc1fdd80c23d3d71816fac (patch)
tree37e0a9a9dea648e79f1fd192960d9a26651f643d
parent58f6eaee7bef8faa1259784d72ee2f51bacead4d (diff)
downloadlinux-stericsson-5a81e6a171cdbd1fa8bc1fdd80c23d3d71816fac.tar.gz
vfs: fix uninitialized flags in splice_to_pipe()
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>
-rw-r--r--fs/splice.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/splice.c b/fs/splice.c
index 873d83104e79..4ef78aa8ef61 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -204,6 +204,7 @@ 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++;