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Christoph Hellwig 507b7333ac xfs: don't leak a locked dquot when xfs_dquot_attach_buf fails
commit 204c8f77e8 upstream.

xfs_qm_quotacheck_dqadjust acquired the dquot through xfs_qm_dqget,
which means it owns a reference and holds q_qlock.  Both need to
be dropped on an error exit.

Cc: <stable@vger.kernel.org> # v6.13
Fixes: ca378189fd ("xfs: convert quotacheck to attach dquot buffers")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Carlos Maiolino <cem@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2026-01-08 10:14:07 +01:00
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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 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.