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| Filename | Latest commit message | Latest commit date |
|---|---|---|
313699d505
commit 27c14b5daa82861220d6fa6e27b51f05f21ffaa7 upstream.
[ In xfs_iwalk_ag(), Replace a call to XFS_IS_CORRUPT() with a call to
ASSERT() ]
The aim of the inode btree record iterator function is to call a
callback on every record in the btree. To avoid having to tear down and
recreate the inode btree cursor around every callback, it caches a
certain number of records in a memory buffer. After each batch of
callback invocations, we have to perform a btree lookup to find the
next record after where we left off.
However, if the keys of the inode btree are corrupt, the lookup might
put us in the wrong part of the inode btree, causing the walk function
to loop forever. Therefore, we add extra cursor tracking to make sure
that we never go backwards neither when performing the lookup nor when
jumping to the next inobt record. This also fixes an off by one error
where upon resume the lookup should have been for the inode /after/ the
point at which we stopped.
Found by fuzzing xfs/460 with keys[2].startino = ones causing bulkstat
and quotacheck to hang.
Fixes:
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| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| 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 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.