Commit f9400118 authored by Miklos Szeredi's avatar Miklos Szeredi Committed by Greg Kroah-Hartman

vfs: fix uninitialized flags in splice_to_pipe()

commit 5a81e6a1 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: default avatarMiklos Szeredi <>
Signed-off-by: default avatarLinus Torvalds <>
Signed-off-by: default avatarGreg Kroah-Hartman <>
parent c50b74d8
......@@ -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;
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