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| author | Max Kellermann <max.kellermann@ionos.com> | 2022-02-21 11:03:13 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-02-23 12:03:20 +0100 |
| commit | 114e9f141822e6977633d322c1b03e89bd209932 (patch) | |
| tree | 98d3e4972789b7ac9871a353bed3e3720c4493d9 | |
| parent | 2d2d92cfcd3b9675531cace86cb691be56d89da7 (diff) | |
| download | linux-stable-114e9f141822e6977633d322c1b03e89bd209932.tar.gz linux-stable-114e9f141822e6977633d322c1b03e89bd209932.tar.bz2 linux-stable-114e9f141822e6977633d322c1b03e89bd209932.zip | |
lib/iov_iter: initialize "flags" in new pipe_buffer
commit 9d2231c5d74e13b2a0546fee6737ee4446017903 upstream.
The functions copy_page_to_iter_pipe() and push_pipe() can both
allocate a new pipe_buffer, but the "flags" member initializer is
missing.
Fixes: 241699cd72a8 ("new iov_iter flavour: pipe-backed")
To: Alexander Viro <viro@zeniv.linux.org.uk>
To: linux-fsdevel@vger.kernel.org
To: linux-kernel@vger.kernel.org
Cc: stable@vger.kernel.org
Signed-off-by: Max Kellermann <max.kellermann@ionos.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | lib/iov_iter.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/iov_iter.c b/lib/iov_iter.c index 60b5e6edfbaa..c5b2f0f4b8a8 100644 --- a/lib/iov_iter.c +++ b/lib/iov_iter.c @@ -416,6 +416,7 @@ static size_t copy_page_to_iter_pipe(struct page *page, size_t offset, size_t by return 0; buf->ops = &page_cache_pipe_buf_ops; + buf->flags = 0; get_page(page); buf->page = page; buf->offset = offset; @@ -532,6 +533,7 @@ static size_t push_pipe(struct iov_iter *i, size_t size, break; buf->ops = &default_pipe_buf_ops; + buf->flags = 0; buf->page = page; buf->offset = 0; buf->len = min_t(ssize_t, left, PAGE_SIZE); |