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Pavel Begunkov c932501bc2 io_uring/msg_ring: fix remote queue to disabled ring 
commit 8579538c89 upstream.

IORING_SETUP_R_DISABLED rings don't have the submitter task set, so
it's not always safe to use ->submitter_task. Disallow posting msg_ring
messaged to disabled rings. Also add task NULL check for loosy sync
around testing for IORING_SETUP_R_DISABLED.

Cc: stable@vger.kernel.org
Fixes: 6d043ee116 ("io_uring: do msg_ring in target task via tw")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-02-01 08:34:35 +01:00
arch
arm64: efi: Account for the EFI runtime stack in stack unwinder
2023-02-01 08:34:35 +01:00
block
block: mq-deadline: Rename deadline_is_seq_writes()
2023-01-24 07:24:44 +01:00
certs
certs: make system keyring depend on built-in x509 parser
2022-09-24 04:31:18 +09:00
crypto
crypto: tcrypt - Fix multibuffer skcipher speed test mem leak
2022-12-31 13:32:34 +01:00
Documentation
docs: Fix path paste-o for /sys/kernel/warn_count
2023-01-24 07:24:41 +01:00
drivers
drm/amdgpu: complete gfxoff allow signal during suspend without delay
2023-02-01 08:34:35 +01:00
fs
btrfs: zoned: enable metadata over-commit for non-ZNS setup
2023-02-01 08:34:34 +01:00
include
platform/x86: simatic-ipc: add another model
2023-02-01 08:34:33 +01:00
init
gcc: disable -Warray-bounds for gcc-11 too
2023-01-14 10:33:43 +01:00
io_uring
io_uring/msg_ring: fix remote queue to disabled ring
2023-02-01 08:34:35 +01:00
ipc
ipc: fix memory leak in init_mqueue_fs()
2022-12-31 13:32:01 +01:00
kernel
kcsan: test: don't put the expect array on the stack
2023-02-01 08:34:29 +01:00
lib
lockref: stop doing cpu_relax in the cmpxchg loop
2023-02-01 08:34:34 +01:00
LICENSES
LICENSES/LGPL-2.1: Add LGPL-2.1-or-later as valid identifiers
2021-12-16 14:33:10 +01:00
mm
panic: Consolidate open-coded panic_on_warn checks
2023-01-24 07:24:41 +01:00
net
Bluetooth: hci_sync: cancel cmd_timer if hci_open failed
2023-02-01 08:34:35 +01:00
rust
Kbuild: add Rust support
2022-09-28 09:02:20 +02:00
samples
samples: vfio-mdev: Fix missing pci_disable_device() in mdpy_fb_probe()
2022-12-31 13:32:42 +01:00
scripts
Merge tag 'objtool_urgent_for_v6.1_rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2022-11-27 12:08:17 -08:00
security
tomoyo: fix broken dependency on *.conf.default
2023-02-01 08:34:06 +01:00
sound
ASoC: fsl-asoc-card: Fix naming of AC'97 CODEC widgets
2023-02-01 08:34:31 +01:00
tools
Revert "selftests/bpf: check null propagation only neither reg is PTR_TO_BTF_ID"
2023-02-01 08:34:34 +01:00
usr
usr/gen_init_cpio.c: remove unnecessary -1 values from int file
2022-10-03 14:21:44 -07:00
virt
Merge branch 'kvm-dwmw2-fixes' into HEAD
2022-11-23 18:59:45 -05:00
.clang-format
inet: ping: use hlist_nulls rcu iterator during lookup
2022-12-01 12:42:46 +01:00
.cocciconfig
scripts: add Linux .cocciconfig for coccinelle
2016-07-22 12:13:39 +02:00
.get_maintainer.ignore
get_maintainer: add Alan to .get_maintainer.ignore
2022-08-20 15:17:44 -07:00
.gitattributes
.gitattributes: use 'dts' diff driver for dts files
2019-12-04 19:44:11 -08:00
.gitignore
Kbuild: add Rust support
2022-09-28 09:02:20 +02:00
.mailmap
Merge tag 'mm-hotfixes-stable-2022-12-10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2022-12-10 17:10:52 -08:00
.rustfmt.toml
rust: add .rustfmt.toml
2022-09-28 09:02:20 +02:00
COPYING
COPYING: state that all contributions really are covered by this file
2020-02-10 13:32:20 -08:00
CREDITS
MAINTAINERS: Remove Michal Marek from Kbuild maintainers
2022-11-16 14:53:00 +09:00
Kbuild
Merge tag 'kbuild-v6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
2022-10-10 12:00:45 -07:00
Kconfig
kbuild: ensure full rebuild when the compiler is updated
2020-05-12 13:28:33 +09:00
MAINTAINERS
panic: Expose "warn_count" to sysfs
2023-01-24 07:24:41 +01:00
Makefile
kbuild: fix 'make modules' error when CONFIG_DEBUG_INFO_BTF_MODULES=y
2023-02-01 08:34:08 +01:00
README
Drop all 00-INDEX files from Documentation/
2018-09-09 15:08:58 -06:00

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.
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