CVE-2026-98004

In the Linux kernel, the following vulnerability has been resolved: iommu/riscv: Serialize command queue publishing Serialize command queue publishing so software producer state advances only after a command is written and the hardware tail is updated. Wait for hardware consumption outside the queue lock when the command queue is full so other CPUs are not blocked behind a long poll.

• https://git.kernel.org/stable/c/6d4c12ab9ab8db87411c863a54e0e97f9197afde
• https://git.kernel.org/stable/c/787405e9e7bdc53ea7e063fe7b855171b4bd0e91
• https://git.kernel.org/stable/c/ca58afa40946acd252a50fa4d4a86f15847a3d7d