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Vulnerability record · CVE-2026-46105 · published 28 May 2026

CVE-2026-46105: Linux kernel vulnerability

Linux · Linux Kernel

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.

7.8 CVSS 3.1 High EPSS 0.17% · top 94.0%
7.8CVSS 3.1 base score
0.17%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References
25 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://git.kernel.org/stable/c/04631f55afc543d5431a2bdee7f6cc0f2c0debe7 Patch
https://git.kernel.org/stable/c/45dcc815fc5539e88154315f36cbcb11d3a52fc2 Patch
https://git.kernel.org/stable/c/e5f9824817c6358b9f9738bdb92dec9e4e794d3c Patch

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Source: NIST National Vulnerability Database (record CVE-2026-46105), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.