CVE-2026-46105

HIGH

scsi: mpt3sas: Limit NVMe request size to 2 MiB

Title source: cna
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: mpt3sas: Limit NVMe request size to 2 MiB The HBA firmware reports NVMe MDTS values based on the underlying drive capability. However, because the driver allocates a fixed 4K buffer for the PRP list, accommodating at most 512 entries, the driver supports a maximum I/O transfer size of 2 MiB. Limit max_hw_sectors to the smaller of the reported MDTS and the 2 MiB driver limit to prevent issuing oversized I/O that may lead to a kernel oops.

Scores

CVSS v3 7.8
EPSS 0.0013
EPSS Percentile 2.8%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

Status published
Products (13)
linux/Kernel 6.17.0 - 6.18.30linux
linux/Kernel 6.19.0 - 7.0.7linux
Linux/Linux < 6.17
Linux/Linux 6.17
Linux/Linux 6.18.30 - 6.18.*
Linux/Linux 7.0.7 - 7.0.*
Linux/Linux 7.1
Linux/Linux 7.1-rc3
Linux/Linux 9b8b84879d4adc506b0d3944e20b28d9f3f6994b - 04631f55afc543d5431a2bdee7f6cc0f2c0debe7
Linux/Linux 9b8b84879d4adc506b0d3944e20b28d9f3f6994b - 45dcc815fc5539e88154315f36cbcb11d3a52fc2
... and 3 more
Published May 28, 2026
Tracked Since May 28, 2026