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CVE-2025-21764

ndisc: use RCU protection in ndisc_alloc_skb()

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.4.291, 5.10.235, 5.15.179, 6.1.129, 6.6.79, and 2 more
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: total

Summary

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.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: total

  3. Record last updated

Affected versions

  • Linux Linux

    From de09334b9326632bbf1a74bfd8b01866cbbf2f61 · fixed in 96fc896d0e5b37c12808df797397fb16f3080879; From de09334b9326632bbf1a74bfd8b01866cbbf2f61 · fixed in c30893ef3d9cde8e7e8e4fd06b53d2c935bbccb1; From de09334b9326632bbf1a74bfd8b01866cbbf2f61 · fixed in b870256dd2a5648d5ed2f22316b3ac29a7e5ed63; From de09334b9326632bbf1a74bfd8b01866cbbf2f61 · fixed in 3c2d705f5adf5d860aaef90cb4211c0fde2ba66d; From de09334b9326632bbf1a74bfd8b01866cbbf2f61 · fixed in 9e0ec817eb41a55327a46cd3ce331a9868d60304; From de09334b9326632bbf1a74bfd8b01866cbbf2f61 · fixed in bbec88e4108e8d6fb468d3817fa652140a44ff28; From de09334b9326632bbf1a74bfd8b01866cbbf2f61 · fixed in cd1065f92eb7ff21b9ba5308a86f33d1670bf926; From de09334b9326632bbf1a74bfd8b01866cbbf2f61 · fixed in 628e6d18930bbd21f2d4562228afe27694f66da9

  • Linux Linux

    3.9

  • KernelLinux

    From 3.9.0 · fixed in 5.4.291; From 5.5.0 · fixed in 5.10.235; From 5.11.0 · fixed in 5.15.179; From 5.16.0 · fixed in 6.1.129; From 6.2.0 · fixed in 6.6.79; From 6.7.0 · fixed in 6.12.16; From 6.13.0 · fixed in 6.13.4

References 8

git.kernel.org