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Haimin Zhang eb7511bf91 KVM: x86: Handle SRCU initialization failure during page track init 
Check the return of init_srcu_struct(), which can fail due to OOM, when
initializing the page track mechanism.  Lack of checking leads to a NULL
pointer deref found by a modified syzkaller.

Reported-by: TCS Robot <tcs_robot@tencent.com>
Signed-off-by: Haimin Zhang <tcs_kernel@tencent.com>
Message-Id: <1630636626-12262-1-git-send-email-tcs_kernel@tencent.com>
[Move the call towards the beginning of kvm_arch_init_vm. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-09-22 10:33:09 -04:00
arch
KVM: x86: Handle SRCU initialization failure during page track init
2021-09-22 10:33:09 -04:00
block
blk-cgroup: fix UAF by grabbing blkcg lock before destroying blkg pd
2021-09-15 12:03:18 -06:00
certs
certs: Add support for using elliptic curve keys for signing modules
2021-08-23 19:55:42 +03:00
crypto
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
2021-08-30 12:57:10 -07:00
Documentation
Merge tag 'devicetree-fixes-for-5.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
2021-09-18 12:40:55 -07:00
drivers
dmascc: use proper 'virt_to_bus()' rather than casting to 'int'
2021-09-19 10:49:42 -07:00
fs
Merge tag 'iov_iter.3-5.15-2021-09-17' of git://git.kernel.dk/linux-block
2021-09-17 09:23:44 -07:00
include
entry: rseq: Call rseq_handle_notify_resume() in tracehook_notify_resume()
2021-09-22 10:24:01 -04:00
init
memblock: introduce saner 'memblock_free_ptr()' interface
2021-09-14 13:23:22 -07:00
ipc
ipc: remove memcg accounting for sops objects in do_semtimedop()
2021-09-14 10:22:11 -07:00
kernel
entry: rseq: Call rseq_handle_notify_resume() in tracehook_notify_resume()
2021-09-22 10:24:01 -04:00
lib
pci_iounmap'2: Electric Boogaloo: try to make sense of it all
2021-09-19 17:13:35 -07:00
LICENSES
LICENSES/dual/CC-BY-4.0: Git rid of "smart quotes"
2021-07-15 06:31:24 -06:00
mm
memblock: introduce saner 'memblock_free_ptr()' interface
2021-09-14 13:23:22 -07:00
net
Merge tag 'net-5.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2021-09-16 13:05:42 -07:00
samples
Merge tag 'kgdb-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux
2021-09-07 12:08:04 -07:00
scripts
Merge tag 'kbuild-fixes-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
2021-09-19 12:55:12 -07:00
security
Merge tag 'kbuild-v5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
2021-09-03 15:33:47 -07:00
sound
Merge tag 'sound-fix-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
2021-09-09 16:05:10 -07:00
tools
selftests: KVM: Align SMCCC call with the spec in steal_time
2021-09-22 10:33:08 -04:00
usr
.gitignore: prefix local generated files with a slash
2021-05-02 00:43:35 +09:00
virt
KVM: Drop unused kvm_dirty_gfn_invalid()
2021-09-06 08:23:46 -04:00
.clang-format
clang-format: Update with the latest for_each macro list
2021-05-12 23:32:39 +02:00
.cocciconfig
scripts: add Linux .cocciconfig for coccinelle
2016-07-22 12:13:39 +02:00
.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
.gitignore: ignore only top-level modules.builtin
2021-05-02 00:43:35 +09:00
.mailmap
mailmap: update email address of Matthias Fuchs and Thomas Körper
2021-08-19 09:39:44 +02:00
COPYING
COPYING: state that all contributions really are covered by this file
2020-02-10 13:32:20 -08:00
CREDITS
MAINTAINERS: move Murali Karicheri to credits
2021-04-29 15:47:30 -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
MAINTAINERS: Add Nirmal Patel as VMD maintainer
2021-09-15 16:44:03 -05:00
Makefile
Linux 5.15-rc2
2021-09-19 17:28:22 -07:00
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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