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Not yet scoredPublished Sep 25, 2026

CVE-2026-98004iommu/riscv: Serialize command queue publishing

Updated under an hour ago ()

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It affects Linux. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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.

CVSS
Not yet scored
Weakness (CWE)
Not given
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
Linux
NVD analysis
Received
Record last updated
Oct 15, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Linux Linux
linux:linux (from the name)
from 856c0cfe5c5f6a2cc8d995872eb67bff9c68c57c before 787405e9e7bdc53ea7e063fe7b855171b4bd0e91; 856c0cfe5c5f6a2cc8d995872eb67bff9c68c57c builds before 6d4c12ab9ab8db87411c863a54e0e97f9197afde; from 856c0cfe5c5f6a2cc8d995872eb67bff9c68c57c before ca58afa40946acd252a50fa4d4a86f15847a3d7d
CNA record

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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