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Wei Chen fcbb72b041 media: dvb-usb: digitv: fix null-ptr-deref in digitv_i2c_xfer() 
[ Upstream commit 9ded5bd2a4 ]

In digitv_i2c_xfer, msg is controlled by user. When msg[i].buf
is null and msg[i].len is zero, former checks on msg[i].buf would be
passed. Malicious data finally reach digitv_i2c_xfer. If accessing
msg[i].buf[0] without sanity check, null ptr deref would happen. We add
check on msg[i].len to prevent crash.

Similar commit:
commit 0ed554fd76 ("media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()")

Link: https://lore.kernel.org/linux-media/20230313095008.1039689-1-harperchen1110@gmail.com
Signed-off-by: Wei Chen <harperchen1110@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-06-09 10:30:10 +02:00
arch ARM: 9295/1: unwind:fix unwind abort for uleb128 case 2023-06-09 10:30:08 +02:00
block blk-crypto: make blk_crypto_evict_key() more robust 2023-05-17 11:47:32 +02:00
certs certs/blacklist_hashes.c: fix const confusion in certs blacklist 2022-06-22 14:13:17 +02:00
crypto crypto: drbg - Only fail when jent is unavailable in FIPS mode 2023-05-17 11:47:50 +02:00
Documentation ASoC: dt-bindings: Adjust #sound-dai-cells on TI's single-DAI codecs 2023-06-09 10:30:09 +02:00
drivers media: dvb-usb: digitv: fix null-ptr-deref in digitv_i2c_xfer() 2023-06-09 10:30:10 +02:00
fs gfs2: Don't deref jdesc in evict 2023-06-09 10:30:08 +02:00
include tcp: deny tcp_disconnect() when threads are waiting 2023-06-09 10:30:05 +02:00
init kbuild: check the minimum assembler version in Kconfig 2023-04-20 12:10:28 +02:00
io_uring io_uring: avoid null-ptr-deref in io_arm_poll_handler 2023-03-22 13:30:05 +01:00
ipc ipc/sem: Fix dangling sem_array access in semtimedop race 2022-12-08 11:24:00 +01:00
kernel bpf: Fix mask generation for 32-bit narrow loads of 64-bit fields 2023-05-30 12:57:58 +01:00
lib debugobjects: Don't wake up kswapd from fill_pool() 2023-05-30 12:57:57 +01:00
LICENSES LICENSES/deprecated: add Zlib license text 2020-09-16 14:33:49 +02:00
mm writeback, cgroup: remove extra percpu_ref_exit() 2023-05-30 12:57:56 +01:00
net xfrm: Check if_id in inbound policy/secpath match 2023-06-09 10:30:09 +02:00
samples samples/bpf: Fix fout leak in hbm's run_bpf_prog 2023-05-30 12:57:49 +01:00
scripts recordmcount: Fix memory leaks in the uwrite function 2023-05-30 12:57:50 +01:00
security selinux: ensure av_permissions.h is built when needed 2023-05-17 11:47:37 +02:00
sound ASoC: ssm2602: Add workaround for playback distortions 2023-06-09 10:30:09 +02:00
tools selftests: fib_tests: mute cleanup error message 2023-05-30 12:57:58 +01:00
usr usr/include/Makefile: add linux/nfc.h to the compile-test coverage 2022-02-01 17:25:48 +01:00
virt KVM: fix memoryleak in kvm_init() 2023-04-05 11:23:43 +02:00
.clang-format RDMA 5.10 pull request 2020-10-17 11:18:18 -07:00
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore kbuild: generate Module.symvers only when vmlinux exists 2021-05-19 10:12:59 +02:00
.mailmap mailmap: add two more addresses of Uwe Kleine-König 2020-12-06 10:19:07 -08:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: Move Jason Cooper to CREDITS 2020-11-30 10:20:34 +01:00
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 audit: update the mailing list in MAINTAINERS 2023-02-25 11:55:04 +01:00
Makefile Linux 5.10.182 2023-06-05 09:07:04 +02:00
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.