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[ Upstream commit c214006856ff52a8ff17ed8da52d50601d54f9ce ] When computing the tree index in dbAllocAG, we never check if we are out of bounds realative to the size of the stree. This could happen in a scenario where the filesystem metadata are corrupted. Reported-by: syzbot+cffd18309153948f3c3e@syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=cffd18309153948f3c3e Tested-by: syzbot+cffd18309153948f3c3e@syzkaller.appspotmail.com Signed-off-by: Arnaud Lecomte <contact@arnaud-lcm.com> Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.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.