What’s Vulnerable › Vulnerabilities

CVE-2025-38264: nvme-tcp: sanitize request list handling

• 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: 2025-07-09 · updated 2026-10-21

Description

In the Linux kernel, the following vulnerability has been resolved: nvme-tcp: sanitize request list handling Validate the request in nvme_tcp_handle_r2t() to ensure it's not part of any list, otherwise a malicious R2T PDU might inject a loop in request list processing.

Affected products

• Linux kernel: from 5.0 before 6.12.36; from 6.13 before 6.15.5 — fixed in 6.12.36, 6.15.5

How to fix

Upgrade to a fixed version: Linux kernel 6.12.36, 6.15.5. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/0bf04c874fcb1ae46a863034296e4b33d8fbd66c
• https://git.kernel.org/stable/c/78a4adcd3fedb0728436e8094848ebf4c6bae006
• https://git.kernel.org/stable/c/8f27d152b2a59f443091cf9e3d815f06e32e9b96
• https://git.kernel.org/stable/c/f054ea62598197714a6ca7b3b387a027308f8b13

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