CVE-2026-98004

iommu/riscv: Serialize command queue publishing

N/A
Published: September 25, 2026 at 10:23 AM UTC
Updated: October 19, 2026 at 10:17 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.13856c0cfe5c5f6a2cc8d995872eb67bff9c68c57c
Vendor states this is fixed in 6d4c12ab9ab8db87411c863a54e0e97f9197afde (fixed)
Vendor states this is fixed in ca58afa40946acd252a50fa4d4a86f15847a3d7d (fixed)
Vendor states this is fixed in 6.13 (unaffected)
Vendor states this is fixed in 6.18.57 (unaffected)
Vendor states this is fixed in 7.2.7 (unaffected)
Vendor states this is fixed in 7.3 (unaffected)
Vendor states this is fixed in 7.3-rc3 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

Quick Info

StatusRECEIVED

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