CVE-2025-21761

In the Linux kernel, the following vulnerability has been resolved: openvswitch: use RCU protection in ovs_vport_cmd_fill_info() ovs_vport_cmd_fill_info() can be called without RTNL or RCU. Use RCU protection and dev_net_rcu() to avoid potential UAF.

CVSS 3.1

7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.3% chance of exploitation in the next 30 days; higher than 17% of CVEs (scores of 2026-10-25)

CWE

CWE-416

Published

2025-02-27

Modified

2026-10-15

Record from

the NVD, synced 2026-10-19

Affected

• linux:linux_kernel

References

• https://git.kernel.org/stable/c/5828937742af74666192835d657095d95c53dbd0
• https://git.kernel.org/stable/c/7e01abc34e87abd091e619161a20f54ed4e3e2da
• https://git.kernel.org/stable/c/8ec57509c36c8b9a23e50b7858dda0c520a2d074
• https://git.kernel.org/stable/c/90b2f49a502fa71090d9f4fe29a2f51fe5dff76d
• https://git.kernel.org/stable/c/a849a10de5e04d798f7f286a2f1ca174719a617a

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