High [CVE-2026-72248] support IPIP tunnel with direct xmit
This high-severity Red Hat Linux advisory covers CVE-2026-72248 affecting Red Hat Enterprise Linux 10, Red Hat package: kernel.
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Summary
A flaw was found in the Linux kernel's netfilter flowtable component. When an Internet Protocol over Internet Protocol (IPIP) tunnel is used with direct transmit (xmit), such as with a bridge device, the system fails to properly handle network packet destination entries.
This improper handling can lead to a system crash in the tunnel transmit path, resulting in a Denial of Service (DoS). Red Hat severity: Important — CVSS 7 (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H).
Weakness: CWE-824. 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 2 hours 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 2 hours 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 2 hours ago·verify at source
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