CVE-2025-21764
ndisc: use RCU protection in ndisc_alloc_skb()
CVSS Score
7.8
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: ndisc: use RCU protection in ndisc_alloc_skb() ndisc_alloc_skb() can be called without RTNL or RCU being held. Add RCU protection to avoid possible 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
de09334b9326632bbf1a74bfd8b01866cbbf2f61 < 96fc896d0e5b37c12808df797397fb16f3080879 de09334b9326632bbf1a74bfd8b01866cbbf2f61 < c30893ef3d9cde8e7e8e4fd06b53d2c935bbccb1 de09334b9326632bbf1a74bfd8b01866cbbf2f61 < b870256dd2a5648d5ed2f22316b3ac29a7e5ed63 de09334b9326632bbf1a74bfd8b01866cbbf2f61 < 3c2d705f5adf5d860aaef90cb4211c0fde2ba66d de09334b9326632bbf1a74bfd8b01866cbbf2f61 < 9e0ec817eb41a55327a46cd3ce331a9868d60304 de09334b9326632bbf1a74bfd8b01866cbbf2f61 < bbec88e4108e8d6fb468d3817fa652140a44ff28 de09334b9326632bbf1a74bfd8b01866cbbf2f61 < cd1065f92eb7ff21b9ba5308a86f33d1670bf926 de09334b9326632bbf1a74bfd8b01866cbbf2f61 < 628e6d18930bbd21f2d4562228afe27694f66da9
Linux / Linux
3.9
References
git.kernel.org: https://git.kernel.org/stable/c/96fc896d0e5b37c12808df797397fb16f3080879 git.kernel.org: https://git.kernel.org/stable/c/c30893ef3d9cde8e7e8e4fd06b53d2c935bbccb1 git.kernel.org: https://git.kernel.org/stable/c/b870256dd2a5648d5ed2f22316b3ac29a7e5ed63 git.kernel.org: https://git.kernel.org/stable/c/3c2d705f5adf5d860aaef90cb4211c0fde2ba66d git.kernel.org: https://git.kernel.org/stable/c/9e0ec817eb41a55327a46cd3ce331a9868d60304 git.kernel.org: https://git.kernel.org/stable/c/bbec88e4108e8d6fb468d3817fa652140a44ff28 git.kernel.org: https://git.kernel.org/stable/c/cd1065f92eb7ff21b9ba5308a86f33d1670bf926 git.kernel.org: https://git.kernel.org/stable/c/628e6d18930bbd21f2d4562228afe27694f66da9 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