In the Linux kernel, the following vulnerability has been resolved:
net: dsa: remove redundant netdev_lock_ops() from conduit ethtool ops
DSA replaces the conduit (master) device's ethtool_ops with its own wrappers that aggregate stats from both the conduit and DSA switch ports. Taking the lock again inside the DSA wrappers causes a deadlock.
Stumbled upon this when booting qemu with fbnic and CONFIG_NET_DSA_LOOP=y (which looks like some kind of testing device that auto-populates the ports of eth0). `ethtool -i` is enough to deadlock. This means we have basically zero coverage for DSA stuff with real ops locked devs.
Remove the redundant netdev_lock_ops()/netdev_unlock_ops() calls from the DSA conduit ethtool wrappers.
CVSS Details
- CVSS 3.1 Base Score: 5.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade kernel6.18Upgrade perf6.18Upgrade python3-perf6.18Upgrade kernel6.18-tools-debuginfoUpgrade python3-perf6.18-debuginfoUpgrade bpftool6.18Upgrade kernel6.18-modules-extra-commonUpgrade kernel6.18-debuginfo-common-aarch64Upgrade kernel6.18-tools-develUpgrade kernel6.18-debuginfoUpgrade kernel-livepatch-6.18.33-63.124Upgrade perf6.18-debuginfoUpgrade kernel6.18-develUpgrade kernel6.18-debuginfo-common-x86_64Upgrade kernel6.18-toolsUpgrade kernel6.18-headersUpgrade bpftool6.18-debuginfoUpgrade kernel6.18-modules-extra | Jul 13, 2026 | Jun 26, 2026 |
| Ubuntu | — | Upgrade linux-image-7.0.0-1011-oracleUpgrade linux-image-generic-hwe-26.04Upgrade linux-image-7.0.0-1008-oracleUpgrade linux-image-realtime-64k-7.0Upgrade linux-image-7.0.0-1015-raspi-realtimeUpgrade linux-image-nvidia-7.0Upgrade linux-image-awsUpgrade linux-image-raspi-realtimeUpgrade linux-image-realtimeUpgrade linux-image-oracle-64k-7.0Upgrade linux-image-nvidia-bos-64k-7.0Upgrade linux-image-oracle-64kUpgrade linux-image-gcpUpgrade linux-image-7.0.0-28-genericUpgrade linux-image-nvidia-64kUpgrade linux-image-oracleUpgrade linux-image-7.0.0-1008-oracle-64kUpgrade linux-image-gcp-64k-7.0Upgrade linux-image-7.0.0-1009-azure-fdeUpgrade linux-image-raspi-7.0Upgrade linux-image-7.0.0-1011-gcp-64kUpgrade linux-image-7.0.0-1014-azureUpgrade linux-image-7.0.0-28-realtime-64kUpgrade linux-image-gcp-64kUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-oem-24.04dUpgrade linux-image-oem-24.04cUpgrade linux-image-oem-7.0Upgrade linux-image-gcp-7.0Upgrade linux-image-generic-hwe-24.04Upgrade linux-image-nvidia-bosUpgrade linux-image-azure-fdeUpgrade linux-image-realtime-64kUpgrade linux-image-virtual-7.0Upgrade linux-image-azure-7.0Upgrade linux-image-7.0.0-28-realtimeUpgrade linux-image-generic-7.0Upgrade linux-image-realtime-64k-hwe-26.04Upgrade linux-image-gke-64kUpgrade linux-image-oem-26.04aUpgrade linux-image-oem-24.04aUpgrade linux-image-7.0.0-1011-gcpUpgrade linux-image-gke-hwe-26.04Upgrade linux-image-nvidia-hwe-26.04Upgrade linux-image-7.0.0-1003-gke-64kUpgrade linux-image-oem-24.04bUpgrade linux-image-gke-64k-7.0Upgrade linux-image-virtual-hwe-26.04Upgrade linux-image-oracle-7.0Upgrade linux-image-nvidiaUpgrade linux-image-ibm-7.0Upgrade linux-image-genericUpgrade linux-image-aws-64k-7.0Upgrade linux-image-7.0.0-28-generic-64kUpgrade linux-image-7.0.0-2016-nvidia-bosUpgrade linux-image-7.0.0-1016-nvidiaUpgrade linux-image-oem-26.04Upgrade linux-image-7.0.0-1015-raspiUpgrade linux-image-7.0.0-1009-aws-64kUpgrade linux-image-nvidia-bos-7.0Upgrade linux-image-aws-7.0Upgrade linux-image-generic-64kUpgrade linux-image-azure-fde-7.0Upgrade linux-image-raspiUpgrade linux-image-nvidia-64k-hwe-26.04Upgrade linux-image-nvidia-64k-7.0Upgrade linux-image-realtime-7.0Upgrade linux-image-oem-24.04Upgrade linux-image-7.0.0-1003-gkeUpgrade linux-image-gkeUpgrade linux-image-generic-64k-hwe-26.04Upgrade linux-image-aws-64kUpgrade linux-image-7.0.0-1016-nvidia-64kUpgrade linux-image-gke-64k-hwe-26.04Upgrade linux-image-7.0.0-1010-ibmUpgrade linux-image-7.0.0-1008-gcpUpgrade linux-image-nvidia-bos-64kUpgrade linux-image-ibmUpgrade linux-image-7.0.0-1010-azureUpgrade linux-image-7.0.0-1008-gcp-64kUpgrade linux-image-virtualUpgrade linux-image-realtime-hwe-26.04Upgrade linux-image-raspi-realtime-7.0Upgrade linux-image-gke-7.0Upgrade linux-image-7.0.0-1011-oracle-64kUpgrade linux-image-7.0.0-1009-awsUpgrade linux-image-azureUpgrade linux-image-7.0.0-1009-oemUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-generic-64k-7.0Upgrade linux-image-7.0.0-2016-nvidia-bos-64k | Jul 20, 2026 | Jun 26, 2026 |
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