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Joseph Qi c01f389fbf ocfs2: fix BUG when iput after ocfs2_mknod fails 
commit 759a7c6126 upstream.

Commit b1529a41f7 "ocfs2: should reclaim the inode if
'__ocfs2_mknod_locked' returns an error" tried to reclaim the claimed
inode if __ocfs2_mknod_locked() fails later.  But this introduce a race,
the freed bit may be reused immediately by another thread, which will
update dinode, e.g.  i_generation.  Then iput this inode will lead to BUG:
inode->i_generation != le32_to_cpu(fe->i_generation)

We could make this inode as bad, but we did want to do operations like
wipe in some cases.  Since the claimed inode bit can only affect that an
dinode is missing and will return back after fsck, it seems not a big
problem.  So just leave it as is by revert the reclaim logic.

Link: https://lkml.kernel.org/r/20221017130227.234480-1-joseph.qi@linux.alibaba.com
Fixes: b1529a41f7 ("ocfs2: should reclaim the inode if '__ocfs2_mknod_locked' returns an error")
Signed-off-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Reported-by: Yan Wang <wangyan122@huawei.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Changwei Ge <gechangwei@live.cn>
Cc: Gang He <ghe@suse.com>
Cc: Jun Piao <piaojun@huawei.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-10-29 10:08:29 +02:00
arch arm64: dts: qcom: sc8280xp-pmics: Remove reg entry & use correct node name for pmc8280c_lpg node 2022-10-21 12:39:29 +02:00
block blk-wbt: fix that 'rwb->wc' is always set to 1 in wbt_init() 2022-10-21 12:39:28 +02:00
certs certs: make system keyring depend on built-in x509 parser 2022-09-24 04:31:18 +09:00
crypto crypto: akcipher - default implementation for setting a private key 2022-10-21 12:38:59 +02:00
Documentation x86/apic: Don't disable x2APIC if locked 2022-10-21 12:39:07 +02:00
drivers video/aperture: Call sysfb_disable() before removing PCI devices 2022-10-29 10:08:29 +02:00
fs ocfs2: fix BUG when iput after ocfs2_mknod fails 2022-10-29 10:08:29 +02:00
include fbdev/core: Remove remove_conflicting_pci_framebuffers() 2022-10-26 12:22:57 +02:00
init arm64 fixes for -rc3 2022-08-26 11:32:53 -07:00
io_uring io-wq: Fix memory leak in worker creation 2022-10-26 12:22:57 +02:00
ipc ipc: mqueue: fix possible memory leak in init_mqueue_fs() 2022-10-21 12:38:55 +02:00
kernel gcov: support GCC 12.1 and newer compilers 2022-10-26 12:22:57 +02:00
lib lib/Kconfig.debug: Add check for non-constant .{s,u}leb128 support to DWARF5 2022-10-21 12:39:29 +02:00
LICENSES LICENSES/LGPL-2.1: Add LGPL-2.1-or-later as valid identifiers 2021-12-16 14:33:10 +01:00
mm mm: hugetlb: fix UAF in hugetlb_handle_userfault 2022-10-21 12:39:27 +02:00
net net: flag sockets supporting msghdr originated zerocopy 2022-10-26 12:22:56 +02:00
samples Tracing updates for 5.20 / 6.0 2022-08-05 09:41:12 -07:00
scripts kbuild: rpm-pkg: fix breakage when V=1 is used 2022-10-21 12:39:01 +02:00
security ima: fix blocking of security.ima xattrs of unsupported algorithms 2022-10-21 12:37:58 +02:00
sound Revert "ALSA: hda: Fix page fault in snd_hda_codec_shutdown()" 2022-10-26 12:22:57 +02:00
tools perf intel-pt: Fix system_wide dummy event for hybrid 2022-10-21 12:39:26 +02:00
usr Not a lot of material this cycle. Many singleton patches against various 2022-05-27 11:22:03 -07:00
virt KVM: Drop unnecessary initialization of "ops" in kvm_ioctl_create_device() 2022-08-19 04:05:43 -04:00
.clang-format PCI/DOE: Add DOE mailbox support functions 2022-07-19 15:38:04 -07:00
.cocciconfig
.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: split the second line of *.mod into *.usyms 2022-05-08 03:16:59 +09:00
.mailmap Qualcomm ARM64 DTS fixes for 6.0 2022-09-23 16:44:37 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS drm for 5.20/6.0 2022-08-03 19:52:08 -07:00
Kbuild kbuild: rename hostprogs-y/always to hostprogs/always-y 2020-02-04 01:53:07 +09:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS One MAINTAINERS update, two MM fixes, both cc:stable 2022-10-01 09:13:29 -07:00
Makefile Linux 6.0.5 2022-10-26 12:53:32 +02:00
README

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.