CVE-2025-21802
net: hns3: fix oops when unload drivers paralleling
- State
- Published
- Severity
- Not scored
- Published
- Feb 27, 2025
- Updated
- Oct 15, 2026
- Reserved
- Dec 29, 2024
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.
Scores
The record has no CVSS score.
Weaknesses
The record names no weakness.
Affected Products
| Product | Versions |
|---|---|
LinuxLinux |
|
LinuxLinux |
|
References
- https://git.kernel.org/stable/c/622d92a67656e5c4d2d6ccac02d688ed995418c6
- https://git.kernel.org/stable/c/8c640dd3d900cc8988a39c007591f1deee776df4
- https://git.kernel.org/stable/c/e876522659012ef2e73834a0b9f1cbe3f74d5fad
- https://git.kernel.org/stable/c/b5a8bc47aa0a4aa8bca5466dfa2d12dbb5b3cd0c
- https://git.kernel.org/stable/c/82736bb83fb0221319c85c2e9917d0189cd84e1e
- https://git.kernel.org/stable/c/cafe9a27e22736d4a01b3933e36225f9857c7988
- https://git.kernel.org/stable/c/92e5995773774a3e70257e9c95ea03518268bea5
- https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
- https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- https://cert-portal.siemens.com/productcert/html/ssa-457936.html
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