CVE-2025-21802
Last modified
CVE-2025-21802 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. 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. EPSS estimates a 0.19% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 4.19.214, < 4.20 |
| Linux | Linux Kernel | >= 5.4.156, < 5.5 |
| Linux | Linux Kernel | >= 5.10.76, < 5.10.235 |
| Linux | Linux Kernel | >= 5.14.15, < 5.15 |
| Linux | Linux Kernel | >= 5.15.1, < 5.15.179 |
| Linux | Linux Kernel | >= 5.16, < 6.1.129 |
| Linux | Linux Kernel | >= 6.2, < 6.6.76 |
| Linux | Linux Kernel | >= 6.7, < 6.12.13 |
| Linux | Linux Kernel | >= 6.13, < 6.13.2 |
| Linux | Linux Kernel | 5.15 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
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