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Len Baker f11ee2ad25 net: mana: Prefer struct_size over open coded arithmetic
As noted in the "Deprecated Interfaces, Language Features, Attributes,
and Conventions" documentation [1], size calculations (especially
multiplication) should not be performed in memory allocator (or similar)
function arguments due to the risk of them overflowing. This could lead
to values wrapping around and a smaller allocation being made than the
caller was expecting. Using those allocations could lead to linear
overflows of heap memory and other misbehaviors.

So, use the struct_size() helper to do the arithmetic instead of the
argument "size + count * size" in the kzalloc() function.

[1] https://www.kernel.org/doc/html/v5.14/process/deprecated.html#open-coded-arithmetic-in-allocator-arguments

Signed-off-by: Len Baker <len.baker@gmx.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-09-12 10:49:21 +01:00
Documentation dt-bindings: net: sun8i-emac: Add compatible for D1 2021-09-08 11:27:34 +01:00
LICENSES LICENSES/dual/CC-BY-4.0: Git rid of "smart quotes" 2021-07-15 06:31:24 -06:00
arch ARM: 2021-09-07 13:40:51 -07:00
block block-5.15-2021-09-05 2021-09-06 10:06:26 -07:00
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
drivers net: mana: Prefer struct_size over open coded arithmetic 2021-09-12 10:49:21 +01:00
fs fuse update for 5.15 2021-09-07 12:18:29 -07:00
include net/af_unix: fix a data-race in unix_dgram_poll 2021-09-09 10:57:52 +01:00
init Enable '-Werror' by default for all kernel builds 2021-09-05 11:24:05 -07:00
ipc memcg: enable accounting of ipc resources 2021-09-03 09:58:12 -07:00
kernel kgdb patches for 5.15 2021-09-07 12:08:04 -07:00
lib lib/test_scanf: split up number parsing test routines 2021-09-06 11:04:03 -07:00
mm Revert "mm/gup: remove try_get_page(), call try_get_compound_head() directly" 2021-09-07 11:03:45 -07:00
net net/packet: clarify source of pr_*() messages 2021-09-10 10:00:59 +01:00
samples kgdb patches for 5.15 2021-09-07 12:08:04 -07:00
scripts don't make the syscall checking produce errors from warnings 2021-09-06 09:15:09 -07:00
security Kbuild updates for v5.15 2021-09-03 15:33:47 -07:00
sound Kbuild updates for v5.15 2021-09-03 15:33:47 -07:00
tools selftest: net: fix typo in altname test 2021-09-12 10:48:26 +01:00
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
.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 Networking stragglers and fixes for 5.15-rc1, including changes from netfilter, 2021-09-07 14:02:58 -07:00
Makefile Enable '-Werror' by default for all kernel builds 2021-09-05 11:24:05 -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.