High · published September 5, 2024
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.
| Product | Versions | Fixed in |
|---|---|---|
| linux/linux_kernel | ≥ 4.15, < 5.4.283 | 5.4.283 |
| linux/linux_kernel | ≥ 5.5, < 5.10.225 | 5.10.225 |
| linux/linux_kernel | ≥ 5.11, < 5.15.166 | 5.15.166 |
| linux/linux_kernel | ≥ 5.16, < 6.1.107 | 6.1.107 |
| linux/linux_kernel | ≥ 6.2, < 6.6.48 | 6.6.48 |
| linux/linux_kernel | ≥ 6.7, < 6.10.7 | 6.10.7 |
| linux/linux_kernel | all versions | — |
| linux/linux_kernel | all versions | — |
| linux/linux_kernel | all versions | — |