Medium · published February 28, 2025
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.
| Product | Versions | Fixed in |
|---|---|---|
| linux/linux_kernel | ≥ 4.19.214, < 4.20 | 4.20 |
| linux/linux_kernel | ≥ 5.4.156, < 5.5 | 5.5 |
| linux/linux_kernel | ≥ 5.10.76, < 5.10.235 | 5.10.235 |
| linux/linux_kernel | ≥ 5.14.15, < 5.15 | 5.15 |
| linux/linux_kernel | ≥ 5.15.1, < 5.15.179 | 5.15.179 |
| linux/linux_kernel | ≥ 5.16, < 6.1.129 | 6.1.129 |
| linux/linux_kernel | ≥ 6.2, < 6.6.76 | 6.6.76 |
| linux/linux_kernel | ≥ 6.7, < 6.12.13 | 6.12.13 |
| linux/linux_kernel | ≥ 6.13, < 6.13.2 | 6.13.2 |
| linux/linux_kernel | all versions | — |
| linux/linux_kernel | all versions | — |