CVE-2026-74705

None

Open

TLP:CLEAR

udp: fix potential use-after-free in tunnel segmentation

NVD CVE.org

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Description

In the Linux kernel, the following vulnerability has been resolved: udp: fix potential use-after-free in tunnel segmentation __skb_udp_tunnel_segment() gets the UDP header before ensuring the tunnel header is in the skb head. If the pull reallocates skb->head, the saved UDP header pointer is no longer valid. Get the UDP header after the pull to avoid a potential use-after-free.

Details

Confidence: 90%
Published: Aug 22, 2026
Last Modified: Aug 22, 2026

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