Vulnerability Description
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.
References
- https://git.kernel.org/stable/c/0cb6939a4dfefa822007b7a71986e06bc4f61f54
- https://git.kernel.org/stable/c/3d377911ce81fd4e61af814e750d8e08879a5208
- https://git.kernel.org/stable/c/42935a61001927aa01db10b53b420efd37eaa99b
FAQ
What is CVE-2026-99048?
CVE-2026-99048 is a documented vulnerability. 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 n...
How severe is CVE-2026-99048?
CVSS scoring is not yet available for CVE-2026-99048. Check NVD for updates.
Is there a patch for CVE-2026-99048?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.