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Filename Latest commit message Latest commit date
Yun Zhou 33ab9138a1 seq_buf: Fix overflow in seq_buf_putmem_hex() 
commit d3b16034a24a112bb83aeb669ac5b9b01f744bb7 upstream.

There's two variables being increased in that loop (i and j), and i
follows the raw data, and j follows what is being written into the buffer.
We should compare 'i' to MAX_MEMHEX_BYTES or compare 'j' to HEX_CHARS.
Otherwise, if 'j' goes bigger than HEX_CHARS, it will overflow the
destination buffer.

Link: https://lore.kernel.org/lkml/20210625122453.5e2fe304@oasis.local.home/
Link: https://lkml.kernel.org/r/20210626032156.47889-1-yun.zhou@windriver.com

Cc: stable@vger.kernel.org
Fixes: 5e3ca0ec76 ("ftrace: introduce the "hex" output method")
Signed-off-by: Yun Zhou <yun.zhou@windriver.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-07-19 08:53:16 +02:00
arch MIPS: fix "mipsel-linux-ld: decompress.c:undefined reference to `memmove'" 2021-07-19 08:53:16 +02:00
block blk-wbt: make sure throttle is enabled properly 2021-07-14 16:53:25 +02:00
certs certs: Move load_system_certificate_list to a common function 2021-06-30 08:47:55 -04:00
crypto crypto: shash - avoid comparing pointers to exported functions under CFI 2021-07-14 16:53:13 +02:00
Documentation clocksource: Retry clock read if long delays detected 2021-07-14 16:53:18 +02:00
drivers extcon: intel-mrfld: Sync hardware and software state on init 2021-07-19 08:53:16 +02:00
fs ubifs: Fix races between xattr_{set|get} and listxattr operations 2021-07-19 08:53:16 +02:00
include power: supply: ab8500: Fix an old bug 2021-07-19 08:53:16 +02:00
init kbuild: add CONFIG_LD_IS_LLD 2021-06-30 08:47:44 -04:00
ipc
kernel cpu/hotplug: Cure the cpusets trainwreck 2021-07-19 08:53:15 +02:00
lib seq_buf: Fix overflow in seq_buf_putmem_hex() 2021-07-19 08:53:16 +02:00
LICENSES
mm mm/z3fold: fix potential memory leak in z3fold_destroy_pool() 2021-07-14 16:53:47 +02:00
net sctp: add size validation when walking chunks 2021-07-19 08:53:13 +02:00
samples samples/bpf: Fix the error return code of xdp_redirect's main() 2021-07-14 16:53:30 +02:00
scripts kbuild: Fix objtool dependency for 'OBJECT_FILES_NON_STANDARD_<obj> := n' 2021-07-14 16:53:20 +02:00
security selinux: use __GFP_NOWARN with GFP_NOWAIT in the AVC 2021-07-19 08:53:10 +02:00
sound ASoC: tegra: Set driver_name=tegra for all machine drivers 2021-07-19 08:53:16 +02:00
tools perf bench: Fix 2 memory sanitizer warnings 2021-07-19 08:53:14 +02:00
usr
virt KVM: do not allow mapping valid but non-reference-counted pages 2021-06-30 08:47:50 -04:00
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Makefile Linux 5.4.132 2021-07-14 16:53:49 +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.