Bug 2334819 (CVE-2024-56742)

Summary: CVE-2024-56742 kernel: vfio/mlx5: Fix an unwind issue in mlx5vf_add_migration_pages()
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
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Hardware: All   
OS: Linux   
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Description OSIDB Bzimport 2024-12-29 12:02:06 UTC 
In the Linux kernel, the following vulnerability has been resolved:

vfio/mlx5: Fix an unwind issue in mlx5vf_add_migration_pages()

Fix an unwind issue in mlx5vf_add_migration_pages().

If a set of pages is allocated but fails to be added to the SG table,
they need to be freed to prevent a memory leak.

Any pages successfully added to the SG table will be freed as part of
mlx5vf_free_data_buffer().
Comment 1 Avinash Hanwate 2024-12-30 04:19:28 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024122925-CVE-2024-56742-b3d2@gregkh/T