What’s Vulnerable › Vulnerabilities

CVE-2025-71064: net: hns3: using the num_tqps in the vf driver to apply for resources

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-01-13 · updated 2026-10-15

Description

In the Linux kernel, the following vulnerability has been resolved: net: hns3: using the num_tqps in the vf driver to apply for resources Currently, hdev->htqp is allocated using hdev->num_tqps, and kinfo->tqp is allocated using kinfo->num_tqps. However, kinfo->num_tqps is set to min(new_tqps, hdev->num_tqps); Therefore, kinfo->num_tqps may be smaller than hdev->num_tqps, which causes some hdev->htqp[i] to remain uninitialized in hclgevf_knic_setup(). Thus, this patch allocates hdev->htqp and kinfo->tqp using hdev->num_tqps, ensuring that the lengths of hdev->htqp and kinfo->tqp are consistent and that all elements are properly initialized.

Affected products

• Linux kernel: 4.16 — fixed in 6.19

How to fix

Upgrade to a fixed version: Linux kernel 6.19. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/1956d47a03eb625951e9e070db39fe2590e27510
• https://git.kernel.org/stable/c/429f946a7af3fbf08761d218746cd4afa80a7954
• https://git.kernel.org/stable/c/62f28d79a6186a602a9d926a2dbb5b12b6867df7
• https://git.kernel.org/stable/c/6cd8a2930df850f4600fe8c57d0662b376520281
• https://git.kernel.org/stable/c/bcefdb288eedac96fd2f583298927e9c6c481489
• https://git.kernel.org/stable/c/c149decd8c18ae6acdd7a6041d74507835cf26e6
• https://git.kernel.org/stable/c/c2a16269742e176fccdd0ef9c016a233491a49ad
• https://cert-portal.siemens.com/productcert/html/ssa-019113.html
• https://cert-portal.siemens.com/productcert/html/ssa-457936.html

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