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Lizhi Xu authored
[ Upstream commit eb66b8ab ]

When the length passed in is 0, the pagemap_scan_test_walk() caller should
bail.  This error causes at least a WARN_ON().

Link: https://lkml.kernel.org/r/20231116031352.40853-1-lizhi.xu@windriver.com


Reported-by: default avatar <syzbot+32d3767580a1ea339a81@syzkaller.appspotmail.com>
Closes: https://lkml.kernel.org/r/0000000000000526f2060a30a085@google.com


Signed-off-by: default avatarLizhi Xu <lizhi.xu@windriver.com>
Reviewed-by: default avatarPhillip Lougher <phillip@squashfs.org.uk>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
b5112a4b
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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.