net: hns3: fix oops when unload drivers paralleling
Priority LOW 24Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 1 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.
Summary
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.
Why it matters now
EPSS 0.00211 11th percentileScored 2026-11-07
Fix Partial Linux (Linux): 5.10.235, 4.20, 5.5 +7Red Hat: 1 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 5.10.76 to before 5.10.235; 4.19.214 to before 4.20; 5.4.156 to before 5.5; 5.14.15 to before 5.15 | 5.10.235, 4.20, 5.5, 5.15 | Patch available | CNA |
| Linux | Linux | 5.15 and later | 5.10.235, 5.15.179, 6.1.129, 6.6.76, 6.12.13, 6.13.2, 6.14 | Patch available | CNA |
- Linux VendorLinux Affected 5.10.76 to before 5.10.235; 4.19.214 to before 4.20; 5.4.156 to before 5.5; 5.14.15 to before 5.15 Fixed in 5.10.235, 4.20, 5.5, 5.15 Patch available CNA
- Linux VendorLinux Affected 5.15 and later Fixed in 5.10.235, 5.15.179, 6.1.129, 6.6.76, 6.12.13, 6.13.2, 6.14 Patch available CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 4.19.214 to before 4.20; 5.4.156 to before 5.5; 5.10.76 to before 5.10.235; 5.14.15 to before 5.15; 5.15.1 to before 5.15.179; 5.16 to before 6.1.129; 6.2 to before 6.6.76; 6.7 to before 6.12.13; 6.13 to before 6.13.2 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:5.15:-:*:*:*:*:*:* | 5.15 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:5.15:rc7:*:*:*:*:*:* | 5.15 rc7 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 4.19.214 to before 4.20; 5.4.156 to before 5.5; 5.10.76 to before 5.10.235; 5.14.15 to before 5.15; 5.15.1 to before 5.15.179; 5.16 to before 6.1.129; 6.2 to before 6.6.76; 6.7 to before 6.12.13; 6.13 to before 6.13.2 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:5.15:-:*:*:*:*:*:* Versions 5.15 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:5.15:rc7:*:*:*:*:*:* Versions 5.15 rc7 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.10.235, 4.20, 5.5, 5.15
- Fix · CNA Linux (Linux) Fixed in 5.10.235, 5.15.179, 6.1.129, 6.6.76, 6.12.13, 6.13.2, 6.14
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet: Fix deferred |
Not affected: 4 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2025-21802
- 2026-10-03 Alias added: GHSA-425c-353w-6mvg
References
Patch 7
- 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
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- TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
Sources
- CVE-2025-21802 · CVE Program
- CVE-2025-21802 · NVD
- FIRST EPSS
- GHSA-425c-353w-6mvg · GitHub Advisory Database · CC BY 4.0
- CVE-2025-21802 · Red Hat security data · CC BY 4.0
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