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Zilin Guan fe9339b33e vfio/pds: Fix memory leak in pds_vfio_dirty_enable()
[ Upstream commit 665077d78d ]

pds_vfio_dirty_enable() allocates memory for region_info. If
interval_tree_iter_first() returns NULL, the function returns -EINVAL
immediately without freeing the allocated memory, causing a memory leak.

Fix this by jumping to the out_free_region_info label to ensure
region_info is freed.

Fixes: 2e7c6feb4e ("vfio/pds: Add multi-region support")
Signed-off-by: Zilin Guan <zilin@seu.edu.cn>
Link: https://lore.kernel.org/r/20251225143150.1117366-1-zilin@seu.edu.cn
Signed-off-by: Alex Williamson <alex@shazbot.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2026-01-08 10:16:48 +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.