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Hao Ge ccc6e9ded6 fs: fix undefined behavior in bit shift for SB_NOUSER
commit f15afbd34d upstream.

Shifting signed 32-bit value by 31 bits is undefined, so changing
significant bit to unsigned. It was spotted by UBSAN.

So let's just fix this by using the BIT() helper for all SB_* flags.

Fixes: e462ec50cb ("VFS: Differentiate mount flags (MS_*) from internal superblock flags")
Signed-off-by: Hao Ge <gehao@kylinos.cn>
Message-Id: <20230424051835.374204-1-gehao@kylinos.cn>
[brauner@kernel.org: use BIT() for all SB_* flags]
Signed-off-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-05-30 14:03:22 +01:00
arch x86/topology: Fix erroneous smp_num_siblings on Intel Hybrid platforms 2023-05-30 14:03:19 +01:00
block block, bfq: Fix division by zero error on zero wsum 2023-05-24 17:32:38 +01:00
certs certs: Fix build error when PKCS#11 URI contains semicolon 2023-02-09 11:28:11 +01:00
crypto crypto: testmgr - fix RNG performance in fuzz tests 2023-05-24 17:32:53 +01:00
Documentation dt-binding: cdns,usb3: Fix cdns,on-chip-buff-size type 2023-05-30 14:03:19 +01:00
drivers firmware: arm_ffa: Fix FFA device names for logical partitions 2023-05-30 14:03:22 +01:00
fs cifs: mapchars mount option ignored 2023-05-30 14:03:21 +01:00
include fs: fix undefined behavior in bit shift for SB_NOUSER 2023-05-30 14:03:22 +01:00
init gcc: disable '-Warray-bounds' for gcc-13 too 2023-04-26 14:28:43 +02:00
io_uring io_uring/rsrc: use nospec'ed indexes 2023-05-11 23:03:24 +09:00
ipc ipc: fix memory leak in init_mqueue_fs() 2022-12-31 13:32:01 +01:00
kernel bpf: fix a memory leak in the LRU and LRU_PERCPU hash maps 2023-05-30 14:03:21 +01:00
lib debugobjects: Don't wake up kswapd from fill_pool() 2023-05-30 14:03:20 +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 mm: fix zswap writeback race condition 2023-05-24 17:32:51 +01:00
net ipv6: Fix out-of-bounds access in ipv6_find_tlv() 2023-05-30 14:03:21 +01:00
rust rust: kernel: Mark rust_fmt_argument as extern "C" 2023-04-26 14:28:38 +02:00
samples samples/bpf: Fix fout leak in hbm's run_bpf_prog 2023-05-24 17:32:38 +01:00
scripts recordmcount: Fix memory leaks in the uwrite function 2023-05-24 17:32:41 +01:00
security selinux: ensure av_permissions.h is built when needed 2023-05-11 23:03:06 +09:00
sound ASoC: lpass: Fix for KASAN use_after_free out of bounds 2023-05-30 14:03:20 +01:00
tools selftests: fib_tests: mute cleanup error message 2023-05-30 14:03:20 +01:00
usr usr/gen_init_cpio.c: remove unnecessary -1 values from int file 2022-10-03 14:21:44 -07:00
virt KVM: Fix vcpu_array[0] races 2023-05-24 17:32:50 +01:00
.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 9 hotfixes. 6 for MM, 3 for other areas. Four of these patches address 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 Kbuild updates for v6.1 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 platform/x86: Move existing HP drivers to a new hp subdir 2023-05-24 17:32:42 +01:00
Makefile Linux 6.1.30 2023-05-24 17:32:53 +01:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

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.