SB20260816395 - Out-of-bounds read in Linux kernel nvme target driver

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Main Vulnerability Database SB20260816395

SB20260816395 - Out-of-bounds read in Linux kernel nvme target driver

Published: August 16, 2026

Security Bulletin ID SB20260816395
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Out-of-bounds read (CVE-ID: CVE-2026-72129)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote user to cause a denial of service.

The vulnerability exists due to an out-of-bounds read in nvmet_rdma_use_inline_sg() and inline scatterlist handling in the NVMe target RDMA component when processing host-controlled inline data with a nonzero offset. A remote user can send crafted inline data offsets and lengths to cause a denial of service.

The issue can be triggered when inline_data_size is configured larger than PAGE_SIZE, and page-spanning in-bounds ranges may also cause the scatterlist to be under-counted.


Remediation

Install update from vendor's website.

References