CVE-2025-38551

Summary

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().

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxdf28de7b00502761eba62490f413c65c9b175ed9 < 4e7c46362550b229354aeb52038f414e231b0037affected
LinuxLinuxdf28de7b00502761eba62490f413c65c9b175ed9 < 3859f137b3c1fa1f0031d54263234566bdcdd7aaaffected
LinuxLinuxdf28de7b00502761eba62490f413c65c9b175ed9 < be5dcaed694e4255dc02dd0acfe036708c535defaffected
LinuxLinuxcb06b26bb2e6d2c6a32f65f7bb1b7dcbe033d675affected
LinuxLinux6.11.2 < 6.12affected
LinuxLinux6.12affected
LinuxLinux0 < 6.12unaffected
LinuxLinux6.12.40 <= 6.12.*unaffected
LinuxLinux6.15.8 <= 6.15.*unaffected
LinuxLinux6.16 <= *unaffected

Weaknesses

References