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Filename Latest commit message Latest commit date
Tom Rix 2b9ae7bac9 media: TDA1997x: handle short reads of hdmi info frame.
[ Upstream commit 48d219f9cc667bc6fbc3e3af0b1bfd75db94fce4 ]

Static analysis reports this representative problem

tda1997x.c:1939: warning: 7th function call argument is an uninitialized
value

The 7th argument is buffer[0], which is set in the earlier call to
io_readn().  When io_readn() call to io_read() fails with the first
read, buffer[0] is not set and 0 is returned and stored in len.

The later call to hdmi_infoframe_unpack()'s size parameter is the
static size of buffer, always 40, so a short read is not caught
in hdmi_infoframe_unpacks()'s checking.  The variable len should be
used instead.

Zero initialize buffer to 0 so it is in a known start state.

Fixes: 9ac0038db9 ("media: i2c: Add TDA1997x HDMI receiver driver")
Signed-off-by: Tom Rix <trix@redhat.com>
Reviewed-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-17 09:48:35 +01:00
arch parisc/kgdb: add kgdb_roundup() to make kgdb work with idle polling 2021-11-17 09:48:33 +01:00
block block: remove inaccurate requeue check 2021-11-17 09:48:31 +01:00
certs certs: Trigger creation of RSA module signing key if it's not an RSA key 2021-09-15 09:47:29 +02:00
crypto crypto: shash - avoid comparing pointers to exported functions under CFI 2021-07-14 16:53:13 +02:00
Documentation xen/balloon: add late_initcall_sync() for initial ballooning done 2021-11-17 09:48:25 +01:00
drivers media: TDA1997x: handle short reads of hdmi info frame. 2021-11-17 09:48:35 +01:00
fs btrfs: do not take the uuid_mutex in btrfs_rm_device 2021-11-17 09:48:33 +01:00
include task_stack: Fix end_of_stack() for architectures with upwards-growing stack 2021-11-17 09:48:33 +01:00
init
ipc
kernel cgroup: Make rebind_subsystems() disable v2 controllers all at once 2021-11-17 09:48:34 +01:00
lib lib/xz: Validate the value before assigning it to an enum variable 2021-11-17 09:48:31 +01:00
LICENSES
mm mm, slub: fix potential memoryleak in kmem_cache_open() 2021-10-27 09:54:28 +02:00
net rxrpc: Fix _usecs_to_jiffies() by using usecs_to_jiffies() 2021-11-17 09:48:34 +01:00
samples samples: bpf: Fix tracex7 error raised on the missing argument 2021-09-22 12:26:30 +02:00
scripts leaking_addresses: Always print a trailing newline 2021-11-17 09:48:31 +01:00
security smackfs: use __GFP_NOFAIL for smk_cipso_doi() 2021-11-17 09:48:32 +01:00
sound ALSA: mixer: fix deadlock in snd_mixer_oss_set_volume 2021-11-17 09:48:25 +01:00
tools selftests/bpf: Fix strobemeta selftest regression 2021-11-17 09:48:33 +01:00
usr
virt KVM: do not shrink halt_poll_ns below grow_start 2021-10-09 14:39:50 +02:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS
Makefile Linux 5.4.159 2021-11-12 14:43:05 +01:00
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.