R0dn3yS/android_kernel_xiaomi_sm7250
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
869,805 Commits 1 Branch 0 Tags 1.9 GiB
C 98.1%
Assembly 1.2%
Makefile 0.3%
Shell 0.1%
c377ac6f6b
Go to file
Guo Xuenan c377ac6f6b BACKPORT: lz4: fix LZ4_decompress_safe_partial read out of bound 
When partialDecoding, it is EOF if we've either filled the output buffer
or can't proceed with reading an offset for following match.

In some extreme corner cases when compressed data is suitably corrupted,
UAF will occur.  As reported by KASAN [1], LZ4_decompress_safe_partial
may lead to read out of bound problem during decoding.  lz4 upstream has
fixed it [2] and this issue has been disscussed here [3] before.

current decompression routine was ported from lz4 v1.8.3, bumping
lib/lz4 to v1.9.+ is certainly a huge work to be done later, so, we'd
better fix it first.

[1] https://lore.kernel.org/all/000000000000830d1205cf7f0477@google.com/
[2] c5d6f8a8be#
[3] https://lore.kernel.org/all/CC666AE8-4CA4-4951-B6FB-A2EFDE3AC03B@fb.com/

Link: https://lkml.kernel.org/r/20211111105048.2006070-1-guoxuenan@huawei.com
Reported-by: syzbot+63d688f1d899c588fb71@syzkaller.appspotmail.com
Signed-off-by: Guo Xuenan <guoxuenan@huawei.com>
Reviewed-by: Nick Terrell <terrelln@fb.com>
Acked-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Cc: Yann Collet <cyan@fb.com>
Cc: Chengyang Fan <cy.fan@huawei.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: UtsavBalar1231 <utsavbalar1231@gmail.com>
Change-Id: Ie96067630f546cf78e975ced3644ab1105357018
2022-11-12 11:21:39 +00:00
android ANDROID: fix up abi issue with struct snd_pcm_runtime 2022-05-18 14:50:41 +02:00
arch BACKPORT: arm64: lib: Consistently enable crc32 extension 2022-11-12 11:21:39 +00:00
block UPSTREAM: block: make function __bio_integrity_free() static 2022-11-12 11:20:51 +00:00
certs Merge remote-tracking branch 'aosp/android-4.19-stable' into android12-base 2022-07-09 10:34:17 +05:30
crypto lib/lzo: separate lzo-rle from lzo 2022-11-12 11:19:24 +00:00
Documentation BACKPORT: linkage: Introduce new macros for assembler symbols 2022-11-12 11:21:32 +00:00
drivers mm: introduce vma_set_file function v5 2022-11-12 11:21:27 +00:00
firmware Fix built-in early-load Intel microcode alignment 2020-01-23 08:21:29 +01:00
fs mm: remove unnecessary wrapper function do_mmap_pgoff() 2022-11-12 11:21:24 +00:00
include BACKPORT: linkage: Introduce new macros for assembler symbols 2022-11-12 11:21:32 +00:00
init Revert "psi: Introduce ftrace events" 2022-11-12 11:20:31 +00:00
ipc vm_ops: rename .split() callback to .may_split() 2022-11-12 11:21:26 +00:00
kernel mm/vma: make vma_is_accessible() available for general use 2022-11-12 11:21:22 +00:00
lib BACKPORT: lz4: fix LZ4_decompress_safe_partial read out of bound 2022-11-12 11:21:39 +00:00
LICENSES LICENSES: Add ISC license text 2019-01-10 17:22:01 +02:00
mm FROMLIST: BACKPORT: mm: fix is_pinnable_page against on cma page 2022-11-12 11:21:29 +00:00
net BACKPORT: UPSTREAM: cfg80211: separate get channel number from ies 2022-11-12 11:20:51 +00:00
samples This is the 4.19.218 stable release 2021-11-26 15:19:33 +01:00
scripts BACKPORT: cert host tools: Stop complaining about deprecated OpenSSL functions 2022-11-12 11:21:29 +00:00
security selinux: Allow audit to be disabled 2022-11-12 11:19:22 +00:00
sound sound: soc: support host-less 24bit formats 2022-11-12 11:19:17 +00:00
techpack techpack: audio: promote send_tfa_cal_apr out of DEBUG_FS 2022-11-12 11:19:57 +00:00
tools This is the 4.19.264 stable release 2022-11-07 09:38:03 +01:00
usr initramfs: restore default compression behavior 2020-04-13 10:44:59 +02:00
virt mm: treewide: remove unused address argument from pte_alloc functions 2022-11-12 11:21:18 +00:00
.clang-format clang-format: Set IndentWrappedFunctionNames false 2018-08-01 18:38:51 +02:00
.cocciconfig
.get_maintainer.ignore
.gitattributes .gitattributes: set git diff driver for C source code files 2016-10-07 18:46:30 -07:00
.gitignore .gitignore: remove dts vendor 2022-11-12 11:19:05 +00:00
.gitmodules mkdtimg: Bundle upstream python rewrite as submodule 2022-11-12 11:19:02 +00:00
.mailmap libnvdimm-for-4.19_misc 2018-08-25 18:13:10 -07:00
AndroidKernel.mk AndroidKernel: add TARGET_PREBUILT_INT_KERNEL_IMAGE 2019-08-02 20:31:09 +08:00
build.config.aarch64 ANDROID: enable LLVM_IAS=1 for clang's integrated assembler for aarch64 2021-01-11 17:34:43 -08:00
build.config.allmodconfig ANDROID: Different fix for KABI breakage in 4.19.209 in struct sock 2021-10-11 19:44:01 +00:00
build.config.allmodconfig.aarch64 ANDROID: drop KERNEL_DIR setting in build.config.common 2020-09-25 15:14:51 +08:00
build.config.allmodconfig.arm ANDROID: drop KERNEL_DIR setting in build.config.common 2020-09-25 15:14:51 +08:00
build.config.allmodconfig.x86_64 ANDROID: drop KERNEL_DIR setting in build.config.common 2020-09-25 15:14:51 +08:00
build.config.arm Revert "ANDROID: Kbuild, LLVMLinux: allow overriding clang target triple" 2020-11-10 11:47:24 -08:00
build.config.common ANDROID: clang: update to 12.0.5 2021-04-19 19:40:51 +00:00
build.config.gki ANDROID: gki: Removed cf modules from gki_defconfig 2020-01-31 16:23:38 -08:00
build.config.gki_kasan ANDROID: build_config: drop CONFIG_KASAN_PANIC_ON_WARN 2021-02-15 18:29:34 +00:00
build.config.gki_kasan.aarch64 ANDROID: drop KERNEL_DIR setting in build.config.common 2020-09-25 15:14:51 +08:00
build.config.gki_kasan.x86_64 ANDROID: drop KERNEL_DIR setting in build.config.common 2020-09-25 15:14:51 +08:00
build.config.gki_kprobes ANDROID: Adding kprobes build configs for Cuttlefish 2021-02-28 05:19:39 +00:00
build.config.gki_kprobes.aarch64 ANDROID: Adding kprobes build configs for Cuttlefish 2021-02-28 05:19:39 +00:00
build.config.gki_kprobes.x86_64 ANDROID: Adding kprobes build configs for Cuttlefish 2021-02-28 05:19:39 +00:00
build.config.gki-debug.aarch64 ANDROID: drop KERNEL_DIR setting in build.config.common 2020-09-25 15:14:51 +08:00
build.config.gki-debug.x86_64 ANDROID: drop KERNEL_DIR setting in build.config.common 2020-09-25 15:14:51 +08:00
build.config.gki.aarch64 ANDROID: GKI: prevent removal of monitored symbols 2020-09-29 11:48:43 +01:00
build.config.gki.x86_64 ANDROID: drop KERNEL_DIR setting in build.config.common 2020-09-25 15:14:51 +08:00
build.config.goldfish.arm ANDROID: build.config: enforce trace_printk check 2018-08-28 17:10:42 +05:30
build.config.goldfish.arm64 ANDROID: build.config: enforce trace_printk check 2018-08-28 17:10:42 +05:30
build.config.goldfish.mips ANDROID: build.config: enforce trace_printk check 2018-08-28 17:10:42 +05:30
build.config.goldfish.mips64 ANDROID: build.config: enforce trace_printk check 2018-08-28 17:10:42 +05:30
build.config.goldfish.x86 ANDROID: build.config: enforce trace_printk check 2018-08-28 17:10:42 +05:30
build.config.goldfish.x86_64 ANDROID: build.config: enforce trace_printk check 2018-08-28 17:10:42 +05:30
build.config.x86_64 Revert "Revert "ANDROID: enable LLVM_IAS=1 for clang's integrated assembler for x86_64"" 2021-02-03 13:34:51 -08:00
COPYING COPYING: use the new text with points to the license files 2018-03-23 12:41:45 -06:00
CREDITS 9p: remove Ron Minnich from MAINTAINERS 2018-08-17 16:20:26 -07:00
gen_headers_arm64.bp net: Port samsung MPTCP modifications from SM-N986B 2022-11-12 11:19:58 +00:00
gen_headers_arm.bp net: Port samsung MPTCP modifications from SM-N986B 2022-11-12 11:19:58 +00:00
Kbuild Kbuild updates for v4.15 2017-11-17 17:45:29 -08:00
Kconfig kconfig: move the "Executable file formats" menu to fs/Kconfig.binfmt 2018-08-02 08:06:55 +09:00
kernel_headers.py Change the subprocess argument to fix the build issue 2021-06-28 16:47:30 +05:30
MAINTAINERS Merge remote-tracking branch 'aosp/android-4.19-stable' into android12-base 2022-07-09 10:34:17 +05:30
Makefile techpack: Build display 2022-11-12 11:19:12 +00:00
OWNERS ANDROID: Add OWNERS files referring to the respective android-mainline OWNERS 2021-04-03 14:09:44 +00:00
README Docs: Added a pointer to the formatted docs to README 2018-03-21 09:02:53 -06:00
verity_dev_keys.x509 x86_64_cuttlefish_defconfig: enable verity cert 2018-08-28 17:15:17 +05:30

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.
See Documentation/00-INDEX for a list of what is contained in each file.

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.