CVE-2025-21762
arp: use RCU protection in arp_xmit()
CVSS Score
7.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Feb 27, 2025 |
| Last Updated | May 12, 2026 |
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Affected Versions
Linux / Linux
29a26a56803855a79dbd028cd61abee56237d6e5 < 10f555e3f573d004ae9d89b3276abb58c4ede5c3 29a26a56803855a79dbd028cd61abee56237d6e5 < 307cd1e2d3cb1cbc6c40c679cada6d7168b18431 29a26a56803855a79dbd028cd61abee56237d6e5 < d9366ac2f956a1948b68c0500f84a3462ff2ed8a 29a26a56803855a79dbd028cd61abee56237d6e5 < f189654459423d4d48bef2d120b4bfba559e6039 29a26a56803855a79dbd028cd61abee56237d6e5 < e9f4dee534eb1b225b0a120395ad9bc2afe164d3 29a26a56803855a79dbd028cd61abee56237d6e5 < 01d1b5c9abcaff29a43f1d17a19c33eec92c7dbe 29a26a56803855a79dbd028cd61abee56237d6e5 < 2c331718d3389b6c5f6855078ab7171849e016bd 29a26a56803855a79dbd028cd61abee56237d6e5 < a42b69f692165ec39db42d595f4f65a4c8f42e44
Linux / Linux
4.4
References
git.kernel.org: https://git.kernel.org/stable/c/10f555e3f573d004ae9d89b3276abb58c4ede5c3 git.kernel.org: https://git.kernel.org/stable/c/307cd1e2d3cb1cbc6c40c679cada6d7168b18431 git.kernel.org: https://git.kernel.org/stable/c/d9366ac2f956a1948b68c0500f84a3462ff2ed8a git.kernel.org: https://git.kernel.org/stable/c/f189654459423d4d48bef2d120b4bfba559e6039 git.kernel.org: https://git.kernel.org/stable/c/e9f4dee534eb1b225b0a120395ad9bc2afe164d3 git.kernel.org: https://git.kernel.org/stable/c/01d1b5c9abcaff29a43f1d17a19c33eec92c7dbe git.kernel.org: https://git.kernel.org/stable/c/2c331718d3389b6c5f6855078ab7171849e016bd git.kernel.org: https://git.kernel.org/stable/c/a42b69f692165ec39db42d595f4f65a4c8f42e44 lists.debian.org: https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html lists.debian.org: https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html cert-portal.siemens.com: https://cert-portal.siemens.com/productcert/html/ssa-265688.html cert-portal.siemens.com: https://cert-portal.siemens.com/productcert/html/ssa-503939.html