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CVE-2025-21762

arp: use RCU protection in arp_xmit()

CVSS 7.8 HIGHEPSS 0.2%CWE-416
In the Linux kernel, the following vulnerability has been resolved: arp: use RCU protection in arp_xmit() arp_xmit() can be called without RTNL or RCU protection. Use RCU protection to avoid potential UAF.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Produtos afetados
Linux · Linux

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Referências
https://cert-portal.siemens.com/productcert/html/ssa-265688.htmlhttps://cert-portal.siemens.com/productcert/html/ssa-503939.htmlhttps://git.kernel.org/stable/c/01d1b5c9abcaff29a43f1d17a19c33eec92c7dbehttps://git.kernel.org/stable/c/10f555e3f573d004ae9d89b3276abb58c4ede5c3https://git.kernel.org/stable/c/2c331718d3389b6c5f6855078ab7171849e016bdhttps://git.kernel.org/stable/c/307cd1e2d3cb1cbc6c40c679cada6d7168b18431https://git.kernel.org/stable/c/a42b69f692165ec39db42d595f4f65a4c8f42e44https://git.kernel.org/stable/c/d9366ac2f956a1948b68c0500f84a3462ff2ed8ahttps://git.kernel.org/stable/c/e9f4dee534eb1b225b0a120395ad9bc2afe164d3https://git.kernel.org/stable/c/f189654459423d4d48bef2d120b4bfba559e6039https://lists.debian.org/debian-lts-announce/2025/03/msg00028.htmlhttps://lists.debian.org/debian-lts-announce/2025/05/msg00030.html