summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorMiklos Szeredi <mszeredi@redhat.com>2017-02-16 17:49:02 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-02-23 17:44:35 +0100
commit166a2464cdcf20d4809cc8bb4004241816393a7f (patch)
treeca71852aae905989f996b07528f32f3f18a32690
parenteee1550b3e89217321b63efba64f03b2546180d6 (diff)
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.c1
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++;