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[ Upstream commit 56e69e59751d20993f243fb7dd6991c4e522424c ] An overflow may occur if the function is called with the last block and an offset greater than zero. It is necessary to add a check to avoid this. Found by Linux Verification Center (linuxtesting.org) with Svace. [JK: Make test cover also unalloc table freeing] Link: https://patch.msgid.link/20240620072413.7448-1-r.smirnov@omp.ru Suggested-by: Jan Kara <jack@suse.com> Signed-off-by: Roman Smirnov <r.smirnov@omp.ru> Signed-off-by: Jan Kara <jack@suse.cz> 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.