CVE-2026-74616

CVE CVE-2026-74616EUVD EUVD-2026-64553Published 2026-08-22T15:32:01.000ZLast changed 2026-08-25T05:40:43.000ZCVSS 9.8

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: xdp: reject clones that overrun skb_shared_info tailroom xdpf_clone() clones broadcast copies into a single page and sets frame_sz to PAGE_SIZE. __xdp_build_skb_from_frame() later treats that page like a normal XDP frame and expects the usual skb_shared_info tailroom at the end of the buffer. The current check only rejects frames whose linear xdp_frame header, headroom, and packet data exceed PAGE_SIZE. A source frame backed by a larger allocation can still satisfy that check while extending into the clone's required shared-info area. When such a clone is converted back into an skb, build_skb_around() places skb_shared_info over live packet bytes and later writes can corrupt XDP return metadata. Reject clones unless their linear area fits inside SKB_WITH_OVERHEAD(PAGE_SIZE), matching the tailroom requirement already enforced by the XDP-to-skb conversion path.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux patch: 6.18.45; e624d4ed4aa8cc3c69d1359b0aaea539203ed266 <e48e8edbef2eb824201495daa5234560f632b23c; e624d4ed4aa8cc3c69d1359b0aaea539203ed266 <fab820f1691a9e26d9031f18aae1e9ce09078f92; e624d4ed4aa8cc3c69d1359b0aaea539203ed266 <685edea27ac68d08fe4dbd3de74b858d2ad8e830; e624d4ed4aa8cc3c69d1359b0aaea539203ed266 <ba13763d667e008e185fedf592d53846a5b457d1; e624d4ed4aa8cc3c69d1359b0aaea539203ed266 <f463b6f4957c9c3fd1c75f8d3e5af4879fa609c0; patch: 7.2; patch: 6.12.104; patch: 7.1.9; patch: 0; e624d4ed4aa8cc3c69d1359b0aaea539203ed266 <58408982fa39f9758124cec169f42854d6f98f35; patch: 5.15.216; e624d4ed4aa8cc3c69d1359b0aaea539203ed266 <ef4b7c7046d29a67090de15af0da0d1ae8d1b192; 5.14; patch: 6.6.152; patch: 6.1.183

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

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Linux — Linux

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