CVE-2024-57933 Information

Description

In the Linux kernel the following vulnerability has been resolved:

gve: guard XSK operations on the existence of queues

This patch predicates the enabling and disabling of XSK pools on the existence of queues. As it stands if the interface is down disabling or enabling XSK pools would result in a crash as the RX queue pointer would be NULL. XSK pool registration will occur as part of the next interface up.

Similarly xsk_wakeup needs be guarded against queues disappearing while the function is executing so a check against the GVE_PRIV_FLAGS_NAPI_ENABLED flag is added to synchronize with the disabling of the bit and the synchronize_net() in gve_turndown.

Reference

https://git.kernel.org/stable/c/40338d7987d810fcaa95c500b1068a52b08eec9b https://git.kernel.org/stable/c/771d66f2bd8c4dba1286a9163ab982cecd825718 https://git.kernel.org/stable/c/8e8d7037c89437af12725f454e2eaf40e8166c0f