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In the Linux kernel, the following vulnerability has been resolved:
net: macb: fix unregister_netdev call order in macb_remove()
When removing a macb device, the driver calls phy_exit() before unregister_netdev(). This leads to a WARN from kernfs:
------------[ cut here ]------------ kernfs: can not remove 'attached_dev', no directory WARNING: CPU: 1 PID: 27146 at fs/kernfs/dir.c:1683 Call trace: kernfs_remove_by_name_ns+0xd8/0xf0 sysfs_remove_link+0x24/0x58 phy_detach+0x5c/0x168 phy_disconnect+0x4c/0x70 phylink_disconnect_phy+0x6c/0xc0 [phylink] macb_close+0x6c/0x170 [macb] ... macb_remove+0x60/0x168 [macb] platform_remove+0x5c/0x80 ...
The warning happens because the PHY is being exited while the netdev is still registered. The correct order is to unregister the netdev before shutting down the PHY and cleaning up the MDIO bus.
Fix this by moving unregister_netdev() ahead of phy_exit() in macb_remove().
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux-6.1Upgrade linux | Jan 12, 2026 | Jan 12, 2026 |
| Oracle_linux | — | Upgrade kernel-uek | Nov 11, 2025 | Sep 16, 2025 |
| Ubuntu | — | Upgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-gkeUpgrade linux-image-gcp-lts-24.04Upgrade linux-image-6.8.0-1049-nvidia-lowlatency-64kUpgrade linux-image-fips-6.8Upgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-6.8.0-1047-oracleUpgrade linux-image-6.8.0-1052-gcp-fipsUpgrade linux-image-azure-fips-6.8Upgrade linux-image-gcp-6.8Upgrade linux-image-kvmUpgrade linux-image-aws-lts-24.04Upgrade linux-image-gcp-64k-6.8Upgrade linux-image-6.8.0-1050-raspiUpgrade linux-image-generic-hwe-22.04Upgrade linux-image-azure-fipsUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-oem-22.04dUpgrade linux-image-6.8.0-1049-nvidia-64kUpgrade linux-image-6.8.0-106-fipsUpgrade linux-image-lowlatency-6.8Upgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-6.8.0-1050-aws-fipsUpgrade linux-image-oracleUpgrade linux-image-6.8.0-1047-oracle-64kUpgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-aws-64k-6.8Upgrade linux-image-generic-64k-6.8Upgrade linux-image-realtimeUpgrade linux-image-6.8.0-1052-gcpUpgrade linux-image-virtualUpgrade linux-image-oracle-6.8Upgrade linux-image-aws-64kUpgrade linux-image-6.8.0-106-generic-64kUpgrade linux-image-6.8.0-106-lowlatencyUpgrade linux-image-nvidia-6.8Upgrade linux-image-oem-22.04bUpgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-aws-fips-6.8Upgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-awsUpgrade linux-image-nvidiaUpgrade linux-image-raspi-realtime-6.8Upgrade linux-image-genericUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-6.8.0-106-lowlatency-64kUpgrade linux-image-raspi-realtimeUpgrade linux-image-oem-22.04aUpgrade linux-image-gkeop-6.8Upgrade linux-image-6.8.0-1051-azureUpgrade linux-image-ibm-classicUpgrade linux-image-generic-64kUpgrade linux-image-ibm-6.8Upgrade linux-image-generic-lpaeUpgrade linux-image-azure-6.8Upgrade linux-image-xilinx-6.8Upgrade linux-image-virtual-6.8Upgrade linux-image-realtime-hwe-22.04Upgrade linux-image-raspiUpgrade linux-image-oracle-lts-24.04Upgrade linux-image-xilinx-zynqmpUpgrade linux-image-intel-iotgUpgrade linux-image-gcp-fips-6.8Upgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-intel-iot-realtimeUpgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-raspi-6.8Upgrade linux-image-aws-fipsUpgrade linux-image-nvidia-64kUpgrade linux-image-realtime-6.8.1Upgrade linux-image-gcp-fipsUpgrade linux-image-fipsUpgrade linux-image-6.8.0-106-genericUpgrade linux-image-6.8.0-1035-gkeopUpgrade linux-image-6.8.0-1029-xilinxUpgrade linux-image-azure-lts-24.04Upgrade linux-image-6.8.0-1049-nvidia-lowlatencyUpgrade linux-image-6.8.0-1048-gkeUpgrade linux-image-oracle-64k-6.8Upgrade linux-image-aws-6.8Upgrade linux-image-6.8.1-1045-realtimeUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-xilinxUpgrade linux-image-virtual-hwe-22.04Upgrade linux-image-oem-22.04Upgrade linux-image-gke-64kUpgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-6.8.0-1050-aws-64kUpgrade linux-image-6.8.0-1050-awsUpgrade linux-image-gcp-64kUpgrade linux-image-oracle-64kUpgrade linux-image-oem-22.04cUpgrade linux-image-ibmUpgrade linux-image-gkeopUpgrade linux-image-gke-64k-6.8Upgrade linux-image-gke-6.8Upgrade linux-image-generic-6.8Upgrade linux-image-6.8.0-1048-gke-64kUpgrade linux-image-azureUpgrade linux-image-gcpUpgrade linux-image-6.8.0-1049-ibmUpgrade linux-image-lowlatency-64kUpgrade linux-image-6.8.0-1049-nvidiaUpgrade linux-image-6.8.0-1052-azure-fipsUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-lowlatencyUpgrade linux-image-6.8.0-2040-raspi-realtimeUpgrade linux-image-6.8.0-1052-gcp-64k | Mar 17, 2026 | Sep 16, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jul 27, 2026 | Sep 16, 2025 |
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