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Mikulas Patocka 1a8ecc3cd1 dm snapshot: properly fix a crash when an origin has no snapshots 
commit 7e768532b2396bcb7fbf6f82384b85c0f1d2f197 upstream.

If an origin target has no snapshots, o->split_boundary is set to 0.
This causes BUG_ON(sectors <= 0) in block/bio.c:bio_split().

Fix this by initializing chunk_size, and in turn split_boundary, to
rounddown_pow_of_two(UINT_MAX) -- the largest power of two that fits
into "unsigned" type.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-06-03 09:00:30 +02:00
arch
KVM: x86: Defer vtime accounting 'til after IRQ handling
2021-05-28 13:17:43 +02:00
block
blk-mq: Swap two calls in blk_mq_exit_queue()
2021-05-19 10:13:14 +02:00
certs
certs: Fix blacklist flag type confusion
2021-03-04 11:37:59 +01:00
crypto
async_xor: increase src_offs when dropping destination page
2021-05-14 09:49:59 +02:00
Documentation
powerpc/64s/syscall: Use pt_regs.trap to distinguish syscall ABI difference between sc and scv syscalls
2021-05-26 12:06:53 +02:00
drivers
dm snapshot: properly fix a crash when an origin has no snapshots
2021-06-03 09:00:30 +02:00
fs
proc: Check /proc/$pid/attr/ writes against file opener
2021-06-03 09:00:28 +02:00
include
mac80211: properly handle A-MSDUs that start with an RFC 1042 header
2021-06-03 09:00:29 +02:00
init
seccomp: Fix CONFIG tests for Seccomp_filters
2021-05-14 09:50:24 +02:00
ipc
ipc/mqueue, msg, sem: avoid relying on a stack reference past its expiry
2021-05-26 12:06:54 +02:00
kernel
bpf: No need to simulate speculative domain for immediates
2021-05-28 13:17:43 +02:00
lib
lib: stackdepot: turn depot_lock spinlock to raw_spinlock
2021-05-22 11:40:55 +02:00
LICENSES
LICENSES/deprecated: add Zlib license text
2020-09-16 14:33:49 +02:00
mm
mm/hugetlb: fix F_SEAL_FUTURE_WRITE
2021-05-19 10:13:11 +02:00
net
mac80211: extend protection against mixed key and fragment cache attacks
2021-06-03 09:00:29 +02:00
samples
samples/bpf: Fix broken tracex1 due to kprobe argument change
2021-05-19 10:12:57 +02:00
scripts
scripts: switch explicitly to Python 3
2021-05-22 11:40:55 +02:00
security
KEYS: trusted: Fix memory leak on object td
2021-05-19 10:12:50 +02:00
sound
ALSA: usb-audio: scarlett2: Improve driver startup messages
2021-06-03 09:00:27 +02:00
tools
net/sched: fq_pie: re-factor fix for fq_pie endless loop
2021-06-03 09:00:28 +02:00
usr
Merge branch 'work.fdpic' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2020-08-07 13:29:39 -07:00
virt
kvm: exit halt polling on need_resched() as well
2021-05-19 10:13:12 +02:00
.clang-format
RDMA 5.10 pull request
2020-10-17 11:18:18 -07:00
.cocciconfig
…
.get_maintainer.ignore
Opt out of scripts/get_maintainer.pl
2019-05-16 10:53:40 -07:00
.gitattributes
.gitattributes: use 'dts' diff driver for dts files
2019-12-04 19:44:11 -08:00
.gitignore
kbuild: generate Module.symvers only when vmlinux exists
2021-05-19 10:12:59 +02:00
.mailmap
mailmap: add two more addresses of Uwe Kleine-König
2020-12-06 10:19:07 -08:00
COPYING
COPYING: state that all contributions really are covered by this file
2020-02-10 13:32:20 -08:00
CREDITS
MAINTAINERS: Move Jason Cooper to CREDITS
2020-11-30 10:20:34 +01:00
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
f2fs: move ioctl interface definitions to separated file
2021-05-19 10:13:00 +02:00
Makefile
Linux 5.10.41
2021-05-28 13:17:44 +02:00
README
Drop all 00-INDEX files from Documentation/
2018-09-09 15:08:58 -06:00

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.
Description
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