CVE-2026-46105

7.8 HIGH

In the Linux kernel, the following vulnerability has been resolved: scsi: mpt3sas: Limit NVMe request size to 2 MiB The HBA firmware re...

Published: 2026-05-28 · Last updated: 2026-05-30

Severity and scoring

CVSS: 7.8 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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.

Source: NVD

References

[NVD]https://nvd.nist.gov/vuln/detail/CVE-2026-46105
[Other]https://git.kernel.org/stable/c/04631f55afc543d5431a2bdee7f6cc0f2c0debe7
[Other]https://git.kernel.org/stable/c/45dcc815fc5539e88154315f36cbcb11d3a52fc2
[Other]https://git.kernel.org/stable/c/e5f9824817c6358b9f9738bdb92dec9e4e794d3c