NetSight
IP …
medium5.5

CVE-2025-21802

In the Linux kernel, the following vulnerability has been resolved: net: hns3: fix oops when unload drivers paralleling When unload hclge driver, it tries to d…

Impact

In the Linux kernel, the following vulnerability has been resolved: net: hns3: fix oops when unload drivers paralleling When unload hclge driver, it tries to disable sriov first for each ae_dev node from hnae3_ae_dev_list. If user unloads hns3 driver at the time, because it removes all the ae_dev nodes, and it may cause oops. But we can't simply use hnae3_common_lock for this. Because in the process flow of pci_disable_sriov(), it will trigger the remove flow of VF, which will also take hnae3_common_lock. To fixes it, introduce a new mutex to protect the unload process.

Affected products

VendorProductAffected versions
LinuxLinux Kernel
from 4.19.214 before 4.20
from 5.4.156 before 5.5
from 5.10.76 before 5.10.235
from 5.14.15 before 5.15
from 5.15.1 before 5.15.179
from 5.16 before 6.1.129

References