In the Linux kernel, the following vulnerability has been resolved:
RDMA/hns: Fix memory leak of bonding resources
In a corner case of concurrent driver removal and driver reset, bonding resource is first released in hns_roce_hw_v2_exit() during driver removal, and then is allocated again in hns_roce_register_device() during driver reset. This leads to memory leak because the release timing has already passed. This may also lead to a kernel panic as below because of the leaked notifier callback:
Call trace: 0xffffa20fccc04978 (P) raw_notifier_call_chain+0x20/0x38 call_netdevice_notifiers_info+0x60/0xb8 netdev_lower_state_changed+0x4c/0xb8
As Sashiko suggested, the teardown order of bonding resources should be inverted to make sure the resources are released when the driver is removed.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Ubuntu | — | Upgrade linux-image-aws-64kUpgrade linux-image-generic-64kUpgrade linux-image-7.0.0-1008-gke-64kUpgrade linux-image-7.0.0-1014-gcpUpgrade linux-image-7.0.0-1017-azureUpgrade linux-image-7.0.0-1014-gcp-64kUpgrade linux-image-virtualUpgrade linux-image-7.0.0-1015-ibmUpgrade linux-image-7.0.0-1015-oemUpgrade linux-image-gke-64k-hwe-26.04Upgrade linux-image-oracle-64kUpgrade linux-image-ibm-7.0Upgrade linux-image-ibmUpgrade linux-image-7.0.0-38-realtime-64kUpgrade linux-image-gkeUpgrade linux-image-gke-hwe-26.04Upgrade linux-image-azure-7.0Upgrade linux-image-gcpUpgrade linux-image-7.0.0-38-generic-64kUpgrade linux-image-virtual-7.0Upgrade linux-image-realtime-64k-hwe-26.04Upgrade linux-image-realtime-hwe-26.04Upgrade linux-image-oem-7.0Upgrade linux-image-realtime-64k-7.0Upgrade linux-image-generic-64k-7.0Upgrade linux-image-azure-fde-lts-26.04Upgrade linux-image-7.0.0-1014-aws-64kUpgrade linux-image-oracle-64k-7.0Upgrade linux-image-7.0.0-1013-oracleUpgrade linux-image-azureUpgrade linux-image-genericUpgrade linux-image-azure-lts-26.04Upgrade linux-image-realtime-7.0Upgrade linux-image-oracle-7.0Upgrade linux-image-gke-64kUpgrade linux-image-7.0.0-1016-azure-fdeUpgrade linux-image-gcp-7.0Upgrade linux-image-azure-fde-7.0Upgrade linux-image-realtimeUpgrade linux-image-generic-64k-hwe-26.04Upgrade linux-image-gcp-64k-7.0Upgrade linux-image-gke-64k-7.0Upgrade linux-image-generic-hwe-26.04Upgrade linux-image-gke-7.0Upgrade linux-image-7.0.0-1013-oracle-64kUpgrade linux-image-7.0.0-1008-gkeUpgrade linux-image-7.0.0-38-realtimeUpgrade linux-image-virtual-hwe-26.04Upgrade linux-image-aws-64k-7.0Upgrade linux-image-7.0.0-38-genericUpgrade linux-image-awsUpgrade linux-image-oem-26.04aUpgrade linux-image-aws-7.0Upgrade linux-image-realtime-64kUpgrade linux-image-oracleUpgrade linux-image-oem-26.04Upgrade linux-image-generic-7.0Upgrade linux-image-gcp-64kUpgrade linux-image-azure-fdeUpgrade linux-image-7.0.0-1014-aws | Oct 7, 2026 | Oct 6, 2026 |
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