vfio/pds: Fix memory leak in pds_vfio_dirty_enable()

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[ 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>

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Zilin Guan 2025-12-25 14:31:50 +00:00 • committed by Greg Kroah-Hartman

parent 18b6574d4c

commit a09b30ddd4

1 changed files with 5 additions and 2 deletions

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drivers/vfio/pci/pds/dirty.c

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