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Filename Latest commit message Latest commit date
Andrey Konovalov 7d0325749a userfaultfd: untag user pointers 
This patch is a part of a series that extends kernel ABI to allow to pass
tagged user pointers (with the top byte set to something else other than
0x00) as syscall arguments.

userfaultfd code use provided user pointers for vma lookups, which can
only by done with untagged pointers.

Untag user pointers in validate_range().

Link: http://lkml.kernel.org/r/cdc59ddd7011012ca2e689bc88c3b65b1ea7e413.1563904656.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Mike Rapoport <rppt@linux.ibm.com>
Reviewed-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Eric Auger <eric.auger@redhat.com>
Cc: Felix Kuehling <Felix.Kuehling@amd.com>
Cc: Jens Wiklander <jens.wiklander@linaro.org>
Cc: Khalid Aziz <khalid.aziz@oracle.com>
Cc: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-09-25 17:51:41 -07:00
arch lib: untag user pointers in strn*_user 2019-09-25 17:51:41 -07:00
block for-5.4/post-2019-09-24 2019-09-24 16:31:50 -07:00
certs
crypto
Documentation kernel-doc: core-api: include string.h into core-api 2019-09-25 17:51:39 -07:00
drivers augmented rbtree: add new RB_DECLARE_CALLBACKS_MAX macro 2019-09-25 17:51:39 -07:00
fs userfaultfd: untag user pointers 2019-09-25 17:51:41 -07:00
include bug: move WARN_ON() "cut here" into exception handler 2019-09-25 17:51:41 -07:00
init mm: use CPU_BITS_NONE to initialize init_mm.cpu_bitmask 2019-09-24 15:54:10 -07:00
ipc ipc/sem.c: convert to use built-in RCU list checking 2019-09-25 17:51:41 -07:00
kernel bug: consolidate __WARN_FLAGS usage 2019-09-25 17:51:41 -07:00
lib lib: untag user pointers in strn*_user 2019-09-25 17:51:41 -07:00
LICENSES
mm mm: untag user pointers in get_vaddr_frames 2019-09-25 17:51:41 -07:00
net net/xdp: convert put_page() to put_user_page*() 2019-09-24 15:54:08 -07:00
samples
scripts scripts/gdb: handle split debug 2019-09-25 17:51:40 -07:00
security
sound sound fixes for 5.4-rc1 2019-09-24 16:46:16 -07:00
tools augmented rbtree: rework the RB_DECLARE_CALLBACKS macro definition 2019-09-25 17:51:39 -07:00
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS Merge branch 'i2c/for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2019-09-24 16:48:02 -07:00
Makefile
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.