CVE-2024-44995 Information

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.

Reference

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