CVE-2025-21760
ndisc: extend RCU protection in ndisc_send_skb()
CVSS Score
7.8
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: ndisc: extend RCU protection in ndisc_send_skb() ndisc_send_skb() can be called without RTNL or RCU held. Acquire rcu_read_lock() earlier, so that we can use dev_net_rcu() and avoid a 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
1762f7e88eb34f653b4a915be99a102e347dd45e < 10a1f3fece2f0d23a3a618b72b2b4e6f408ef7d1 1762f7e88eb34f653b4a915be99a102e347dd45e < 4d576202b90b1b95a7c428a80b536f91b8201bcc 1762f7e88eb34f653b4a915be99a102e347dd45e < e24d225e4cb8cf108bde00b76594499b98f0a74d 1762f7e88eb34f653b4a915be99a102e347dd45e < a9319d800b5701e7f5e3fa71a5b7c4831fc20d6d 1762f7e88eb34f653b4a915be99a102e347dd45e < ae38982f521621c216fc2f5182cd091f4734641d 1762f7e88eb34f653b4a915be99a102e347dd45e < 789230e5a8c1097301afc802e242c79bc8835c67 1762f7e88eb34f653b4a915be99a102e347dd45e < 04e05112f10354ffc3bb6cc796d553bab161594c 1762f7e88eb34f653b4a915be99a102e347dd45e < ed6ae1f325d3c43966ec1b62ac1459e2b8e45640
Linux / Linux
2.6.26
References
git.kernel.org: https://git.kernel.org/stable/c/10a1f3fece2f0d23a3a618b72b2b4e6f408ef7d1 git.kernel.org: https://git.kernel.org/stable/c/4d576202b90b1b95a7c428a80b536f91b8201bcc git.kernel.org: https://git.kernel.org/stable/c/e24d225e4cb8cf108bde00b76594499b98f0a74d git.kernel.org: https://git.kernel.org/stable/c/a9319d800b5701e7f5e3fa71a5b7c4831fc20d6d git.kernel.org: https://git.kernel.org/stable/c/ae38982f521621c216fc2f5182cd091f4734641d git.kernel.org: https://git.kernel.org/stable/c/789230e5a8c1097301afc802e242c79bc8835c67 git.kernel.org: https://git.kernel.org/stable/c/04e05112f10354ffc3bb6cc796d553bab161594c git.kernel.org: https://git.kernel.org/stable/c/ed6ae1f325d3c43966ec1b62ac1459e2b8e45640 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