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CVE-2025-21764

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CVE-2025-21764

Published: Feb 27, 2025

Modified: May 12, 2026

PUBLISHED

Description

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.

VendorProductVersions

Linux

Linux

affected
de09334b9326632bbf1a74bfd8b01866cbbf2f61 - < 96fc896d0e5b37c12808df797397fb16f3080879
affected
de09334b9326632bbf1a74bfd8b01866cbbf2f61 - < c30893ef3d9cde8e7e8e4fd06b53d2c935bbccb1
affected
de09334b9326632bbf1a74bfd8b01866cbbf2f61 - < b870256dd2a5648d5ed2f22316b3ac29a7e5ed63
affected
de09334b9326632bbf1a74bfd8b01866cbbf2f61 - < 3c2d705f5adf5d860aaef90cb4211c0fde2ba66d
affected
de09334b9326632bbf1a74bfd8b01866cbbf2f61 - < 9e0ec817eb41a55327a46cd3ce331a9868d60304

+3 more versions

Linux

Linux

affected
3.9
unaffected
0 - < 3.9
unaffected
5.4.291 - <= 5.4.*
unaffected
5.10.235 - <= 5.10.*
unaffected
5.15.179 - <= 5.15.*

+5 more versions

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