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CVE-2026-46294

kernel: dm: fix a buffer overflow in ioctl processing

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Severity

Moderate

Red Hat Product Security

7

CVSS 3.1

Review impact separately from score.

Published · June 8, 2026

Updated · July 9, 2026

Description

A flaw was found in the Linux kernel, specifically within the dm-ioctl module. An improper pointer alignment in the retrieve_status function could lead to a buffer overflow, where data is written beyond the allocated buffer. Despite this, the vulnerability has no practical security implications as it requires root privileges to trigger, and standard library usage prevents accidental exploitation.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE-190 · Integer Overflow or Wraparound