CVE-2025-38551 Information

Aug 17, 2025 cve

Description

In the Linux kernel the following vulnerability has been resolved:

virtio-net: fix recursived rtnl_lock() during probe()

The deadlock appears in a stack trace like:

virtnet_probe() rtnl_lock() virtio_config_changed_work() netdev_notify_peers() rtnl_lock()

It happens if the VMM sends a VIRTIO_NET_S_ANNOUNCE request while the virtio-net driver is still probing.

The config_work in probe() will get scheduled until virtnet_open() enables the config change notification via virtio_config_driver_enable().

Reference

https://git.kernel.org/stable/c/3859f137b3c1fa1f0031d54263234566bdcdd7aa https://git.kernel.org/stable/c/4e7c46362550b229354aeb52038f414e231b0037 https://git.kernel.org/stable/c/be5dcaed694e4255dc02dd0acfe036708c535def

CNNVD-202508-1970 (Published: 2025-08-16)

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