CVE-2026-100236

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{"acknowledgement": "Red Hat would like to thank Alexandru-Ionut Jipa for reporting this issue.", "bugzilla": {"description": "dpdk: dpdk: heap out-of-bounds read/write in GSO header copy", "id": "2541488", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2541488"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.6", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H", "status": "draft"}, "cwe": "CWE-787", "details": ["A flaw was found in the DPDK GSO library. When software GSO copies packet headers into a new mbuf, it does not check that the header fits in the source first segment or in the destination buffer, and a header longer than the configured GSO segment size can underflow the payload-size calculation. A remote or guest-supplied packet processed with software GSO can trigger an out-of-bounds read or write."], "mitigation": {"lang": "en:us", "value": "Do not run software GSO (rte_gso_segment / testpmd --enable-gso) on untrusted packets. 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The flaw affects environments using Data Plane Development Kit (DPDK) applications where software Generic Segmentation Offload (GSO) processes packets from untrusted network sources or guest interfaces. Workloads that do not utilize software GSO or rely entirely on hardware-based segmentation offloading are not impacted by this issue.", "threat_severity": "Important"}

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