CVE-2026-72100
Description
A flaw was found in the Linux kernel's dm-integrity component. This issue occurs when the dm_integrity_check_limits function fails, leading to a resource remaining locked. A local attacker could potentially trigger this condition, resulting in a system deadlock and a Denial of Service (DoS).
Statement
This vulnerability is rated as having Low impact for Red Hat because triggering the resource lock-up requires administrative privileges or specific block device permissions to configure and issue requests to a dm-integrity volume. In standard Red Hat Enterprise Linux deployments, dm-integrity targets are not configured by default, restricting potential exposure to specialized storage setups. Consequently, unprivileged local users cannot directly initiate malformed block I/O requests to induce a kernel deadlock.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 5.5 | N/A | 8.8 |
| Attack Vector | Local | N/A | Network |
| Attack Complexity | Low | N/A | Low |
| Privileges Required | Low | N/A | Low |
| User Interaction | None | N/A | None |
| Scope | Unchanged | N/A | Unchanged |
| Confidentiality | None | N/A | High |
| Integrity Impact | None | N/A | High |
| Availability Impact | High | N/A | High |
Vector
Red Hat: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
cve.org: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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