What’s Vulnerable › Vulnerabilities

CVE-2024-56742: vfio/mlx5: Fix an unwind issue in mlx5vf_add_migration_pages()

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-12-29 · updated 2026-10-30
• Weakness: CWE-401

Description

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().

Affected products

• Linux kernel: from 5.18 before 6.11.11; from 6.12 before 6.12.2 — fixed in 6.11.11, 6.12.2
• Linux: 5.18 — fixed in 6.13

How to fix

Upgrade to a fixed version: Linux kernel 6.11.11, 6.12.2; Linux 6.13. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/22e87bf3f77c18f5982c19ffe2732ef0c7a25f16
• https://git.kernel.org/stable/c/465e06ffbb681f6fe34ca3aeba4b609677c3d4c1
• https://git.kernel.org/stable/c/549384162ed7e84bdefa004b589215d18b0190c5
• https://git.kernel.org/stable/c/769fe4ce444b646b0bf6ac308de80686c730c7df
• https://git.kernel.org/stable/c/c44f1b2ddfa81c8d7f8e9b6bc76c427bc00e69d5

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