CVE-2026-90425 Linux Kernel - Logic Flaw in Stream ID Mapping

Linux kernel iommu/tegra241-cmdqv contains a logic flaw caused by improper handling of devices with multiple or zero Stream IDs in tegra241_vintf_init_vsid(), letting attackers cause invalid guest vSID mappings and out-of-bounds reads, exploit requires device with incorrect stream count.

CVSS base score 8.8 /10
High
CISA KEV
Not listed
Public exploit
None known
EPSS
0.17% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Logic Flaw in Stream ID Mapping
Impact
Denial Of Service
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Published
17 September 2026
Updated
15 October 2026

Vendor fix

Update to the latest Linux kernel version containing the fix for iommu/tegra241-cmdqv.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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