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Roman Smirnov 98ddf2604a block: prevent division by zero in blk_rq_stat_sum() 
[ Upstream commit 93f52fbeaf ]

The expression dst->nr_samples + src->nr_samples may
have zero value on overflow. It is necessary to add
a check to avoid division by zero.

Found by Linux Verification Center (linuxtesting.org) with Svace.

Signed-off-by: Roman Smirnov <r.smirnov@omp.ru>
Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Link: https://lore.kernel.org/r/20240305134509.23108-1-r.smirnov@omp.ru
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
 		2024-04-13 13:10:07 +02:00
Documentation x86/bhi: Mitigate KVM by default 2024-04-10 16:38:24 +02:00
LICENSES
…
arch PCI: Disable D3cold on Asus B1400 PCI-NVMe bridge 2024-04-13 13:10:06 +02:00
block block: prevent division by zero in blk_rq_stat_sum() 2024-04-13 13:10:07 +02:00
certs
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crypto Revert "crypto: pkcs7 - remove sha1 support" 2024-04-03 15:32:31 +02:00
drivers drivers/perf: hisi: Enable HiSilicon Erratum 162700402 quirk for HIP09 2024-04-13 13:10:07 +02:00
fs ext4: forbid commit inconsistent quota data when errors=remount-ro 2024-04-13 13:10:05 +02:00
include SUNRPC: increase size of rpc_wait_queue.qlen from unsigned short to unsigned int 2024-04-13 13:10:06 +02:00
init init: open /initrd.image with O_LARGEFILE 2024-04-03 15:32:37 +02:00
io_uring io_uring/kbuf: hold io_buffer_list reference over mmap 2024-04-10 16:38:16 +02:00
ipc
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kernel rcu/nocb: Fix WARN_ON_ONCE() in the rcu_nocb_bypass_lock() 2024-04-13 13:10:04 +02:00
lib dump_stack: Do not get cpu_sync for panic CPU 2024-04-13 13:09:58 +02:00
mm x86/mm/pat: fix VM_PAT handling in COW mappings 2024-04-10 16:38:19 +02:00
net Bluetooth: Add new quirk for broken read key length on ATS2851 2024-04-13 13:10:02 +02:00
rust Rust changes for v6.8 2024-01-11 13:05:41 -08:00
samples work around gcc bugs with 'asm goto' with outputs 2024-02-09 15:57:48 -08:00
scripts kbuild: make -Woverride-init warnings more consistent 2024-04-10 16:38:00 +02:00
security selinux: avoid dereference of garbage after mount failure 2024-04-10 16:38:01 +02:00
sound ASoC: Intel: avs: Populate board selection with new I2S entries 2024-04-13 13:10:05 +02:00
tools libperf evlist: Avoid out-of-bounds access 2024-04-13 13:10:07 +02:00
usr Kbuild updates for v6.8 2024-01-18 17:57:07 -08:00
virt KVM: Always flush async #PF workqueue when vCPU is being destroyed 2024-04-03 15:32:03 +02:00
.clang-format
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.cocciconfig
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.editorconfig Add .editorconfig file for basic formatting 2023-12-28 16:22:47 +09:00
.get_maintainer.ignore
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.gitattributes
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.gitignore Add .editorconfig file for basic formatting 2023-12-28 16:22:47 +09:00
.mailmap drm fixes for 6.8 final 2024-03-08 12:44:56 -08:00
.rustfmt.toml
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COPYING
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CREDITS MAINTAINERS: supplement of zswap maintainers update 2024-01-25 23:52:21 -08:00
Kbuild
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Kconfig
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MAINTAINERS drm fixes for 6.8 final 2024-03-08 12:44:56 -08:00
Makefile Linux 6.8.5 2024-04-10 16:38:25 +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.