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Roman Smirnov 512a01da71 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 13:05:12 +02:00
Documentation x86/bhi: Mitigate KVM by default 2024-04-10 16:28:35 +02:00
LICENSES
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arch arm64: dts: rockchip: fix rk3399 hdmi ports node 2024-04-13 13:04:55 +02:00
block block: prevent division by zero in blk_rq_stat_sum() 2024-04-13 13:05:12 +02:00
certs certs: Fix build error when PKCS#11 URI contains semicolon 2023-02-09 11:28:11 +01:00
crypto crypto: jitter - fix CRYPTO_JITTERENTROPY help text 2024-03-26 18:20:50 -04:00
drivers input/touchscreen: imagis: Correct the maximum touch area value 2024-04-13 13:05:12 +02:00
fs ext4: forbid commit inconsistent quota data when errors=remount-ro 2024-04-13 13:05:09 +02:00
include SUNRPC: increase size of rpc_wait_queue.qlen from unsigned short to unsigned int 2024-04-13 13:05:11 +02:00
init init: open /initrd.image with O_LARGEFILE 2024-04-03 15:19:47 +02:00
io_uring io_uring/net: correctly handle multishot recvmsg retry setup 2024-04-03 15:19:33 +02:00
ipc
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kernel dma-direct: Leak pages on dma_set_decrypted() failure 2024-04-13 13:04:59 +02:00
lib pci_iounmap(): Fix MMIO mapping leak 2024-04-03 15:19:25 +02:00
mm x86/mm/pat: fix VM_PAT handling in COW mappings 2024-04-10 16:28:33 +02:00
net net/smc: reduce rtnl pressure in smc_pnet_create_pnetids_list() 2024-04-13 13:05:02 +02:00
rust rust: allocator: Prevent mis-aligned allocation 2023-08-11 12:08:18 +02:00
samples work around gcc bugs with 'asm goto' with outputs 2024-02-23 09:12:28 +01:00
scripts scripts/bpf_doc: Use silent mode when exec make cmd 2024-04-10 16:28:21 +02:00
security landlock: Warn once if a Landlock action is requested while disabled 2024-04-03 15:19:32 +02:00
sound ALSA: firewire-lib: handle quirk to calculate payload quadlets as data block counter 2024-04-13 13:05:09 +02:00
tools libperf evlist: Avoid out-of-bounds access 2024-04-13 13:05:12 +02:00
usr
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virt KVM: Always flush async #PF workqueue when vCPU is being destroyed 2024-04-03 15:19:25 +02:00
.clang-format
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.cocciconfig
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.get_maintainer.ignore
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.gitattributes
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.gitignore
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.mailmap
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.rustfmt.toml
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COPYING
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CREDITS
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Kbuild
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Kconfig
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MAINTAINERS trace: Relocate event helper files 2024-03-06 14:45:17 +00:00
Makefile Linux 6.1.85 2024-04-10 16:28:36 +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.