CVE-2026-98282 Linux Kernel - Integer Overflow

Linux kernel contains an integer overflow vulnerability in powerpc/iommu due to improper validation of npages in iommu_tce_check_ioba, letting attackers cause potential memory corruption, exploit requires crafted input with npages > 1.

CVSS base score 8.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.14% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Integer Overflow
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
6 October 2026
Updated
15 October 2026

Vendor fix

Update to the latest Linux kernel version containing the fix for iommu_tce_check_ioba.

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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