mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
synced 2025-01-10 07:50:04 +00:00
Fred Oh
ee8a41cd30
ASoC: rt1011: fix KASAN out-of-bounds bug in find_next_bit()
KASAN throws the following warning in rt1011.c: [ 170.777603] BUG: KASAN: stack-out-of-bounds in _find_next_bit.constprop.0+0x3e/0xf0 find_next_bit() relies on unsigned long pointer arguments, but this driver uses a type cast that generates the KASAN warning. Replace find_next_bit() and find_last_bit() with __ffs() and __fls() to pass the value and avoid casting pointers to make the warning go away. Signed-off-by: Fred Oh <fred.oh@linux.intel.com> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com> Link: https://lore.kernel.org/r/20200622151348.28063-1-pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown <broonie@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.
Description
Languages
C
97.5%
Assembly
1%
Shell
0.6%
Python
0.3%
Makefile
0.3%