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Filename Latest commit message Latest commit date
Ryusuke Konishi 32eaee72e9 nilfs2: prevent kernel bug at submit_bh_wbc()
[ Upstream commit 269cdf353b5bdd15f1a079671b0f889113865f20 ]

Fix a bug where nilfs_get_block() returns a successful status when
searching and inserting the specified block both fail inconsistently.  If
this inconsistent behavior is not due to a previously fixed bug, then an
unexpected race is occurring, so return a temporary error -EAGAIN instead.

This prevents callers such as __block_write_begin_int() from requesting a
read into a buffer that is not mapped, which would cause the BUG_ON check
for the BH_Mapped flag in submit_bh_wbc() to fail.

Link: https://lkml.kernel.org/r/20240313105827.5296-3-konishi.ryusuke@gmail.com
Fixes: 1f5abe7e7d ("nilfs2: replace BUG_ON and BUG calls triggerable from ioctl")
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-04-13 12:51:28 +02:00
arch powerpc/fsl: Fix mfpmr build errors with newer binutils 2024-04-13 12:51:24 +02:00
block
certs
crypto
Documentation x86/cpu: Support AMD Automatic IBRS 2024-04-13 12:51:21 +02:00
drivers drm/vc4: hdmi: do not return negative values from .get_modes() 2024-04-13 12:51:27 +02:00
fs nilfs2: prevent kernel bug at submit_bh_wbc() 2024-04-13 12:51:28 +02:00
include soc: fsl: qbman: Add CGR update function 2024-04-13 12:51:27 +02:00
init
ipc
kernel ring-buffer: Fix full_waiters_pending in poll 2024-04-13 12:51:26 +02:00
lib
LICENSES
mm memtest: use {READ,WRITE}_ONCE in memory scanning 2024-04-13 12:51:27 +02:00
net netfilter: nf_tables: do not compare internal table flags on updates 2024-03-26 18:22:25 -04:00
samples media: rename VFL_TYPE_GRABBER to _VIDEO 2024-03-26 18:22:22 -04:00
scripts kbuild: Move -Wenum-{compare-conditional,enum-conversion} into W=1 2024-04-13 12:51:26 +02:00
security smack: Handle SMACK64TRANSMUTE in smack_inode_setsecurity() 2024-04-13 12:51:22 +02:00
sound ALSA: usb-audio: Stop parsing channels bits when all channels are found. 2024-03-26 18:22:23 -04:00
tools selftests/mqueue: Set timeout to 180 seconds 2024-04-13 12:51:23 +02:00
usr
virt KVM: Always flush async #PF workqueue when vCPU is being destroyed 2024-04-13 12:51:22 +02:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS
Makefile Linux 5.4.273 2024-03-26 18:23:12 -04:00
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.