What’s Vulnerable › Vulnerabilities

CVE-2024-57936: RDMA/bnxt_re: Fix max SGEs for the Work Request

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-01-21 · updated 2026-10-15

Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/bnxt_re: Fix max SGEs for the Work Request Gen P7 supports up to 13 SGEs for now. WQE software structure can hold only 6 now. Since the max send sge is reported as 13, the stack can give requests up to 13 SGEs. This is causing traffic failures and system crashes. Use the define for max SGE supported for variable size. This will work for both static and variable WQEs.

Affected products

• Linux kernel: from 6.12 before 6.12.9; 6.13-rc1, 6.13-rc2, 6.13-rc3, 6.13-rc4, 6.13-rc5 — fixed in 6.12.9

How to fix

Upgrade to a fixed version: Linux kernel 6.12.9. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/3de1b50f055dc2ca7072a526cdda21f691c22dd9
• https://git.kernel.org/stable/c/79d330fbdffd8cee06d8bdf38d82cb62d8363a27
• https://git.kernel.org/stable/c/9a479088e0c8f6140b8c7752b563bc8c6c6dcc8c

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