diff options
| author | Pavel Begunkov <asml.silence@gmail.com> | 2025-06-24 14:40:34 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-07-06 11:01:47 +0200 |
| commit | 50998b0ae7d9d552e96d8b7239981cf05f65eff5 (patch) | |
| tree | 4d525db2f52cf825c02ab52e643202772830e376 /include/net/aligned_data.h | |
| parent | 53fd75f25b223878b5fff14932e3a22f42b54f77 (diff) | |
io_uring/rsrc: don't rely on user vaddr alignment
Commit 3a3c6d61577dbb23c09df3e21f6f9eda1ecd634b upstream.
There is no guaranteed alignment for user pointers, however the
calculation of an offset of the first page into a folio after coalescing
uses some weird bit mask logic, get rid of it.
Cc: stable@vger.kernel.org
Reported-by: David Hildenbrand <david@redhat.com>
Fixes: a8edbb424b139 ("io_uring/rsrc: enable multi-hugepage buffer coalescing")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/io-uring/e387b4c78b33f231105a601d84eefd8301f57954.1750771718.git.asml.silence@gmail.com/
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/net/aligned_data.h')
0 files changed, 0 insertions, 0 deletions