# CVE-2024-44995: net: hns3: fix a deadlock problem when config TC during resetting

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-09-04 · Updated: 2026-08-05

## Affected

- Linux: version range not reported
- Linux: 4.15

## Description

In the Linux kernel, the following vulnerability has been resolved: net: hns3: fix a deadlock problem when config TC during resetting When config TC during the reset process, may cause a deadlock, the flow is as below: pf reset start │ ▼ ...... setup tc │ │ ▼ ▼ DOWN: napi_disable() napi_disable()(skip) │ │ │ ▼ ▼ ...... ...... │ │ ▼ │ napi_enable() │ ▼ UINIT: netif_napi_del() │ ▼ ...... │ ▼ INIT: netif_napi_add() │ ▼ ...... global reset start │ │ ▼ ▼ UP: napi_enable()(skip) ...... │ │ ▼ ▼ ...... napi_disable() In reset process, the driver will DOWN the port and then UINIT, in this case, the setup tc process will UP the port before UINIT, so cause the problem. Adds a DOWN process in UINIT to fix it.

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory per the references below.
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## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/67492d4d105c0a6321b00c393eec96b9a7a97a16
- https://git.kernel.org/stable/c/fc250eca15bde34c4c8f806b9d88f55bd56a992c
- https://git.kernel.org/stable/c/195918217448a6bb7f929d6a2ffffce9f1ece1cc
- https://git.kernel.org/stable/c/6ae2b7d63cd056f363045eb65409143e16f23ae8
- https://git.kernel.org/stable/c/fa1d4de7265c370e673583ac8d1bd17d21826cd9
- https://git.kernel.org/stable/c/de37408d5c26fc4a296a28a0c96dcb814219bfa1
- https://git.kernel.org/stable/c/be5e816d00a506719e9dbb1a9c861c5ced30a109

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Page: https://cve.now/CVE-2024-44995
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