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Linus Torvalds ecdc475e07 vsnprintf: fix the number base for non-numeric formats 
Commit 8d4826cc8a ("vsnprintf: collapse the number format state into
one single state") changed the format specification decoding to be a bit
more straightforward but in the process ended up also resetting the
number base to zero for formats that aren't clearly numerical.

Now, the number base obviously doesn't matter for something like '%s',
so this wasn't all that obvious.  But some of our specialized pointer
extension formatting (ie, things like "print out IPv6 address") did up
depending on the default base-10 setting, and when they then tried to
print out numbers in "base zero", things didn't work out so well.

Most pointer formatting (including things like the default raw hex value
conversion) didn't have this issue, because they used helpers that
explicitly set the base.

Reported-and-tested-by: kernel test robot <oliver.sang@intel.com>
Closes: https://lore.kernel.org/oe-lkp/202501131352.e226f995-lkp@intel.com
Fixes: 8d4826cc8a ("vsnprintf: collapse the number format state into one single state")
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2025-01-13 08:23:28 -08:00
arch KVM x86 fixes for 6.13: 2024-12-22 12:16:41 -08:00
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lib vsnprintf: fix the number base for non-numeric formats 2025-01-13 08:23:28 -08:00
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Makefile Linux 6.13-rc4 2024-12-22 13:22:21 -08:00
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 reStructuredText 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.