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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 11:58:41 +0100 |
| commit | d46c42d8d2742742eddf9290e72df4b563f2e301 (patch) | |
| tree | 86f7771d504174bc8660021f93c63f169feb8752 /lib | |
| parent | 80c889dfd37cedb6002d0660c1ebf67662d158dd (diff) | |
| download | linux-stable-d46c42d8d2742742eddf9290e72df4b563f2e301.tar.gz linux-stable-d46c42d8d2742742eddf9290e72df4b563f2e301.tar.bz2 linux-stable-d46c42d8d2742742eddf9290e72df4b563f2e301.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>
Diffstat (limited to 'lib')
| -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 39e6e978029c..439196223031 100644 --- a/lib/iov_iter.c +++ b/lib/iov_iter.c @@ -393,6 +393,7 @@ static size_t copy_page_to_iter_pipe(struct page *page, size_t offset, size_t by return 0; pipe->nrbufs++; buf->ops = &page_cache_pipe_buf_ops; + buf->flags = 0; get_page(buf->page = page); buf->offset = offset; buf->len = bytes; @@ -517,6 +518,7 @@ static size_t push_pipe(struct iov_iter *i, size_t size, break; pipe->nrbufs++; pipe->bufs[idx].ops = &default_pipe_buf_ops; + pipe->bufs[idx].flags = 0; pipe->bufs[idx].page = page; pipe->bufs[idx].offset = 0; if (left <= PAGE_SIZE) { |