CVE-2024-44995

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