Keith Busch 8fb79be6e9 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: bd11b3a391 ("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>		2023-12-08 08:46:11 +01:00
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io_uring.c	io_uring: fix off-by one bvec index	2023-12-08 08:46:11 +01:00
io-wq.c	io_uring: break out of iowq iopoll on teardown	2023-09-19 12:20:23 +02:00
io-wq.h	io_uring: break out of iowq iopoll on teardown	2023-09-19 12:20:23 +02:00
Makefile	io_uring: import 5.15-stable io_uring	2023-01-04 11:39:23 +01:00