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Filename Latest commit message Latest commit date
Nicolas Pitre b027b30d14 vt: don't hardcode the mem allocation upper bound
commit 2717769e204e83e65b8819c5e2ef3e5b6639b270 upstream.

The code in vc_do_resize() bounds the memory allocation size to avoid
exceeding MAX_ORDER down the kzalloc() call chain and generating a
runtime warning triggerable from user space. However, not only is it
unwise to use a literal value here, but MAX_ORDER may also be
configurable based on CONFIG_FORCE_MAX_ZONEORDER.
Let's use KMALLOC_MAX_SIZE instead.

Note that prior commit bb1107f7c6 ("mm, slab: make sure that
KMALLOC_MAX_SIZE will fit into MAX_ORDER") the KMALLOC_MAX_SIZE value
could not be relied upon.

Signed-off-by: Nicolas Pitre <nico@fluxnic.net>
Cc: <stable@vger.kernel.org> # v4.10+
Link: https://lore.kernel.org/r/nycvar.YSQ.7.76.2003281702410.2671@knanqh.ubzr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-04-29 16:33:20 +02:00
arch powerpc/setup_64: Set cache-line-size based on cache-block-size 2020-04-29 16:33:20 +02:00
block
certs
crypto
Documentation USB: hub: Revert commit bd0e6c9614 ("usb: hub: try old enumeration scheme first for high speed devices") 2020-04-29 16:33:14 +02:00
drivers vt: don't hardcode the mem allocation upper bound 2020-04-29 16:33:20 +02:00
fs cifs: fix uninitialised lease_key in open_shroot() 2020-04-29 16:33:19 +02:00
include mac80211: populate debugfs only after cfg80211 init 2020-04-29 16:33:18 +02:00
init
ipc ipc/util.c: sysvipc_find_ipc() should increase position index 2020-04-29 16:33:00 +02:00
kernel audit: check the length of userspace generated audit records 2020-04-29 16:33:18 +02:00
lib lib/raid6/test: fix build on distros whose /bin/sh is not bash 2020-04-29 16:33:00 +02:00
LICENSES
mm mm/ksm: fix NULL pointer dereference when KSM zero page is enabled 2020-04-29 16:33:15 +02:00
net SUNRPC: Fix backchannel RPC soft lockups 2020-04-29 16:33:18 +02:00
samples vmalloc: fix remap_vmalloc_range() bounds checks 2020-04-29 16:33:14 +02:00
scripts kconfig: qconf: Fix a few alignment issues 2020-04-29 16:33:00 +02:00
security KEYS: Avoid false positive ENOMEM error on key read 2020-04-29 16:33:11 +02:00
sound ASoC: dapm: fixup dapm kcontrol widget 2020-04-29 16:33:18 +02:00
tools tools/vm: fix cross-compile build 2020-04-29 16:33:15 +02:00
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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.