What’s Vulnerable › Vulnerabilities

CVE-2024-40940: net/mlx5: Fix tainted pointer delete is case of flow rules creation fail

• Severity: high (CVSS 7.8 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: 2024-07-12 · updated 2026-06-17
• Weakness: CWE-415

Description

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Fix tainted pointer delete is case of flow rules creation fail In case of flow rule creation fail in mlx5_lag_create_port_sel_table(), instead of previously created rules, the tainted pointer is deleted deveral times. Fix this bug by using correct flow rules pointers. Found by Linux Verification Center (linuxtesting.org) with SVACE.

Affected products

• Linux kernel: from 5.19 before 6.1.95; from 6.2 before 6.6.35; from 6.7 before 6.9.6; 6.10-rc1, 6.10-rc2 — fixed in 6.1.95, 6.6.35, 6.9.6

How to fix

Upgrade to a fixed version: Linux kernel 6.1.95, 6.6.35, 6.9.6. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/229bedbf62b13af5aba6525ad10b62ad38d9ccb5
• https://git.kernel.org/stable/c/531eab2da27dd42d68dfb841d82e987f4a6738b8
• https://git.kernel.org/stable/c/a03a3fa12769e25f4385bee587afe1445aee7f7a
• https://git.kernel.org/stable/c/d857df86837ac1c30592e8a068204d16feac9930
• https://git.kernel.org/stable/c/229bedbf62b13af5aba6525ad10b62ad38d9ccb5
• https://git.kernel.org/stable/c/531eab2da27dd42d68dfb841d82e987f4a6738b8
• https://git.kernel.org/stable/c/a03a3fa12769e25f4385bee587afe1445aee7f7a
• https://git.kernel.org/stable/c/d857df86837ac1c30592e8a068204d16feac9930
• https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html

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