mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2026-08-05 06:01:26 +02:00
Arnaldo Carvalho de MeloandGreg Kroah-Hartman
ca59bda33e
[ Upstream commit438ece0618] filename__write_int() formats an integer into a 64-byte buffer with sprintf() then passes sizeof(buf) (64) as the write length. This writes all 64 bytes including uninitialized stack data past the formatted string. Most sysfs files reject the oversized write, making the function always return -1. Fix by capturing the sprintf() return value and using it as the write length. Reported-by: sashiko-bot <sashiko-bot@kernel.org> Fixes:3b00ea9386("tools lib api fs: Add sysfs__write_int function") Cc: Kan Liang <kan.liang@intel.com> Assisted-by: Claude:claude-opus-4.6 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
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.