Keith Busch d6fef34ee4 io_uring: fix off-by one bvec index ...

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>

2023-11-20 15:21:38 -07:00

..

advise.c

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advise.h

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alloc_cache.h

io_uring/rsrc: consolidate node caching

2023-04-12 12:09:41 -06:00

cancel.c

io_uring: add support for futex wake and wait

2023-09-29 02:36:57 -06:00

cancel.h

io_uring: add support for futex wake and wait

2023-09-29 02:36:57 -06:00

epoll.c

io_uring: undeprecate epoll_ctl support

2023-05-26 20:22:41 -06:00

epoll.h

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fdinfo.c

io_uring/fdinfo: remove need for sqpoll lock for thread/pid retrieval

2023-11-15 06:35:46 -07:00

fdinfo.h

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filetable.c

io_uring: add helpers to decode the fixed file file_ptr

2023-06-20 09:36:22 -06:00

filetable.h

io_uring: add helpers to decode the fixed file file_ptr

2023-06-20 09:36:22 -06:00

fs.c

io_uring/fs: consider link->flags when getting path for LINKAT

2023-11-20 09:01:42 -07:00

fs.h

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futex.c

io_uring: add support for vectored futex waits

2023-09-29 02:37:08 -06:00

futex.h

io_uring: add support for vectored futex waits

2023-09-29 02:37:08 -06:00

io_uring.c

Merge tag 'io_uring-futex-2023-10-30' of git://git.kernel.dk/linux

2023-11-01 11:25:08 -10:00

io_uring.h

Merge tag 'for-6.7/io_uring-2023-10-30' of git://git.kernel.dk/linux

2023-11-01 11:09:19 -10:00

io-wq.c

io-wq: fully initialize wqe before calling cpuhp_state_add_instance_nocalls()

2023-10-05 14:11:18 -06:00

io-wq.h

io_uring: break out of iowq iopoll on teardown

2023-09-07 09:02:27 -06:00

kbuf.c

io_uring: indicate if io_kbuf_recycle did recycle anything

2023-11-06 13:41:58 -07:00

kbuf.h

io_uring: indicate if io_kbuf_recycle did recycle anything

2023-11-06 13:41:58 -07:00

Makefile

io_uring: add support for futex wake and wait

2023-09-29 02:36:57 -06:00

msg_ring.c

io_uring: use io_file_from_index in io_msg_grab_file

2023-06-20 09:36:22 -06:00

msg_ring.h

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net.c

io_uring/net: ensure socket is marked connected on connect retry

2023-11-03 13:25:50 -06:00

net.h

io_uring: Add KASAN support for alloc_caches

2023-04-03 07:16:14 -06:00

nop.c

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nop.h

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notif.c

io_uring/notif: add constant for ubuf_info flags

2023-04-15 14:21:04 -06:00

notif.h

io_uring/notif: add constant for ubuf_info flags

2023-04-15 14:21:04 -06:00

opdef.c

io_uring/rw: add separate prep handler for fixed read/write

2023-11-06 07:43:16 -07:00

opdef.h

io_uring/rw: mark readv/writev as vectored in the opcode definition

2023-09-21 12:00:46 -06:00

openclose.c

io_uring: use files_lookup_fd_locked()

2023-10-19 11:02:49 +02:00

openclose.h

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poll.c

io_uring/poll: use IOU_F_TWQ_LAZY_WAKE for wakeups

2023-10-19 06:42:29 -06:00

poll.h

io_uring: avoid indirect function calls for the hottest task_work

2023-06-02 08:55:37 -06:00

refs.h

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rsrc.c

io_uring: fix off-by one bvec index

2023-11-20 15:21:38 -07:00

rsrc.h

io_uring/rsrc: Annotate struct io_mapped_ubuf with __counted_by

2023-08-17 19:14:47 -06:00

rw.c

io_uring: do not clamp read length for multishot read

2023-11-06 13:41:58 -07:00

rw.h

io_uring/rw: add separate prep handler for fixed read/write

2023-11-06 07:43:16 -07:00

slist.h

io_uring: silence variable ‘prev’ set but not used warning

2023-03-09 10:10:58 -07:00

splice.c

io_uring/splice: use fput() directly

2023-08-10 10:24:25 -06:00

splice.h

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sqpoll.c

io_uring/fdinfo: remove need for sqpoll lock for thread/pid retrieval

2023-11-15 06:35:46 -07:00

sqpoll.h

io_uring/sqpoll: fix io-wq affinity when IORING_SETUP_SQPOLL is used

2023-08-16 13:40:28 -06:00

statx.c

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statx.h

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sync.c

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sync.h

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tctx.c

io_uring: Add io_uring_setup flag to pre-register ring fd and never install it

2023-05-16 08:06:00 -06:00

tctx.h

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timeout.c

io_uring: never overflow io_aux_cqe

2023-08-11 10:42:57 -06:00

timeout.h

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uring_cmd.c

io_uring/cmd: Introduce SOCKET_URING_OP_SETSOCKOPT

2023-10-19 16:42:03 -06:00

uring_cmd.h

io_uring: Remove unnecessary BUILD_BUG_ON

2023-05-04 08:19:05 -06:00

waitid.c

io_uring: add IORING_OP_WAITID support

2023-09-21 12:04:45 -06:00

waitid.h

io_uring: add IORING_OP_WAITID support

2023-09-21 12:04:45 -06:00

xattr.c

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xattr.h

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