diff options
| author | Keith Busch | 2023-11-20 14:18:31 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2023-12-03 07:32:13 +0100 |
| commit | 66ecd1cd8b0c79e65c490dc10c91d0428d95e594 (patch) | |
| tree | 942aa226674a8e4868fdd0649389119f78910f59 /Makefile | |
| parent | 812171018e47db0a10c9c42275156f22ae967546 (diff) | |
io_uring: fix off-by one bvec index
commit d6fef34ee4d102be448146f24caf96d7b4a05401 upstream.
If the offset equals the bv_len of the first registered bvec, then the
request does not include any of that first bvec. Skip it so that drivers
don't have to deal with a zero length bvec, which was observed to break
NVMe's PRP list creation.
Cc: stable@vger.kernel.org
Fixes: bd11b3a391e3 ("io_uring: don't use iov_iter_advance() for fixed buffers")
Signed-off-by: Keith Busch <kbusch@kernel.org>
Link: https://lore.kernel.org/r/20231120221831.2646460-1-kbusch@meta.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Makefile')
0 files changed, 0 insertions, 0 deletions