CVE-2025-38551

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

MEDIUM
5.5
CVSS Score
Published: August 16, 2025 at 11:34 AM UTC
Updated: June 17, 2026 at 09:17 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.1%

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().

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≥ 6.11.26.11.2 ≤ v < 6.126.11.2 ≤ v < 6.12.406.12 ≤ v < 6.12.406.12 ≤ v < 6.15.86.12 ≤ v < 6.166.13 ≤ v < 6.15.86.11.26.126.16 rc16.16 rc26.16 rc36.16 rc46.16 rc56.16 rc6cb06b26bb2e6d2c6a32f65f7bb1b7dcbe033d675df28de7b00502761eba62490f413c65c9b175ed9
Vendor states this is fixed in 3859f137b3c1fa1f0031d54263234566bdcdd7aa (fixed)
Vendor states this is fixed in 4e7c46362550b229354aeb52038f414e231b0037 (fixed)
Vendor states this is fixed in be5dcaed694e4255dc02dd0acfe036708c535def (fixed)
Vendor states this is fixed in 6.12 (unaffected)
Vendor states this is fixed in 6.12.40 (unaffected)
Vendor states this is fixed in 6.15.8 (unaffected)
Vendor states this is fixed in 6.16 (unaffected)

References (3)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/3859f137b3c1fa1f0031d54263234566bdcdd7aa
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/4e7c46362550b229354aeb52038f414e231b0037
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/be5dcaed694e4255dc02dd0acfe036708c535def

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-667

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