https://github.com/torvalds/linux
Revision c21a8027ad8a68c340d0d58bf1cc61dcb0bc4d2f authored by Pavel Begunkov on 14 September 2023, 15:51:09 UTC, committed by Jens Axboe on 14 September 2023, 16:12:55 UTC
When using selected buffer feature, io_uring delays data iter setup
until later. If io_setup_async_msg() is called before that it might see
not correctly setup iterator. Pre-init nr_segs and judge from its state
whether we repointing.

Cc: stable@vger.kernel.org
Reported-by: syzbot+a4c6e5ef999b68b26ed1@syzkaller.appspotmail.com
Fixes: 0455d4ccec548 ("io_uring: add POLL_FIRST support for send/sendmsg and recv/recvmsg")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/0000000000002770be06053c7757@google.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
1 parent 0bb80ec
History
Tip revision: c21a8027ad8a68c340d0d58bf1cc61dcb0bc4d2f authored by Pavel Begunkov on 14 September 2023, 15:51:09 UTC
io_uring/net: fix iter retargeting for selected buf
Tip revision: c21a802
File Mode Size
Documentation
LICENSES
arch
block
certs
crypto
drivers
fs
include
init
io_uring
ipc
kernel
lib
mm
net
rust
samples
scripts
security
sound
tools
usr
virt
.clang-format -rw-r--r-- 20.1 KB
.cocciconfig -rw-r--r-- 59 bytes
.get_maintainer.ignore -rw-r--r-- 151 bytes
.gitattributes -rw-r--r-- 105 bytes
.gitignore -rw-r--r-- 2.0 KB
.mailmap -rw-r--r-- 35.6 KB
.rustfmt.toml -rw-r--r-- 369 bytes
COPYING -rw-r--r-- 496 bytes
CREDITS -rw-r--r-- 100.0 KB
Kbuild -rw-r--r-- 2.5 KB
Kconfig -rw-r--r-- 555 bytes
MAINTAINERS -rw-r--r-- 709.5 KB
Makefile -rw-r--r-- 65.9 KB
README -rw-r--r-- 727 bytes

README

back to top