CVE-2026-99048

In the Linux kernel, the following vulnerability has been resolved: gve: fix napi_disable deadlock when attempting to disable XSK pools When disabling XSK pools, GVE calls the unlocked versions of napi_disable and napi_enable. However, the netdev lock has already been acquired before ndo_bpf is called because GVE supports queue management ops. Calling the unlocked versions of napi_disable/enable results in a deadlock when attempting to disable XSK pools, as the thread attempts to re-acquire a lock it already holds. Update the NAPI calls to use the locked versions. This issue was found in production.

• https://git.kernel.org/stable/c/0cb6939a4dfefa822007b7a71986e06bc4f61f54
• https://git.kernel.org/stable/c/3d377911ce81fd4e61af814e750d8e08879a5208
• https://git.kernel.org/stable/c/42935a61001927aa01db10b53b420efd37eaa99b

Published

Oct 23, 2026

Last Modified

Oct 23, 2026

Status

Received

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