CVE-2026-72018

In the Linux kernel, the following vulnerability has been resolved: dibs: loopback: validate offset and size in move_data() The loopback move_data() performs a memcpy into the registered DMB without checking whether offset + size exceeds the DMB length. Unlike real ISM hardware, which enforces memory region bounds natively, the software loopback has no such protection. A peer-supplied out-of-bounds offset or oversized write would result in an OOB write past the allocated kernel buffer. Add an explicit bounds check before the memcpy to reject such requests with -EINVAL.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/78237e3c0720fcc6eb9b87e90fd70f63eeca886f
https://git.kernel.org/stable/c/94fe0ab01b480b52bd8f977edbd845ef375d69fd
https://git.kernel.org/stable/c/b2f426a9a22886071966432ede8fceafffe12b8c
https://git.kernel.org/stable/c/ee188a6b264b71315a67f1b9470faad308b730d2

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-15 06:21

Updated : 2026-08-17 06:17

NVD link : CVE-2026-72018

Mitre link : CVE-2026-72018

CVE.ORG link : CVE-2026-72018

JSON object : View

Products Affected

No product.

CWE

No CWE.

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