High [CVE-2026-72046] fix header buffer corruption with header-split and HW-GRO
This high-severity Red Hat Linux advisory covers CVE-2026-72046 affecting Red Hat Enterprise Linux 10, Red Hat package: kernel.
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Summary
A flaw was found in the Linux kernel's gve driver. When the header-split and Hardware-assisted Generic Receive Offload (HW-GRO) features are active, the driver incorrectly indexes network packet header buffers.
This can lead to the driver reading headers belonging to different packets or overwriting header buffers still in use by the device. The primary impact is data corruption, which can cause a significant reduction in network throughput and increased TCP retransmissions, potentially resulting in a denial of service.
Red Hat severity: Moderate — CVSS 7 (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H). Weakness: CWE-1285.
Affected Red Hat products: Red Hat Enterprise Linux 10. Red Hat does not currently list a fixing RHSA for this CVE.
Affected products named by the advisory: Red Hat package: kernel.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · medium-confidence parse· fetched 1 hour ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · medium-confidence parse· fetched 1 hour ago·verify at source
Mitigation
The source record does not include mitigation steps. That is not a statement that no fix exists — read the vendor advisory below for the authoritative guidance.
Official advisory · medium-confidence parse· fetched 1 hour ago·verify at source
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