CVE-2026-90008 Linux Kernel - Out of Bounds Read/Write

Linux kernel scsi megaraid_sas contains a buffer overrun vulnerability caused by unchecked PRP list size in megasas_make_prp_nvme, letting attackers cause memory corruption or kernel crash, exploit requires crafted large NVMe requests.

CVSS base score 7.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.17% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Out of Bounds Read/Write
Impact
Denial Of Service, Privilege Escalation
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
16 September 2026
Updated
15 October 2026

Vendor fix

Update to the latest Linux kernel version containing the fix for megaraid_sas PRP list size limit.

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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