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VULNERABILITIES

CVE-2026-89998 Details

Description

In the Linux kernel, the following vulnerability has been resolved: dm: fix race when loading and unloading a table If the userspace calls two concurrent table load ioctls and one of them succeeds and the other fails, there is a race condition because dm_setup_md_queue walks &md->table_devices without any lock. If the walk races with dm_table_destroy -> free_devices -> dm_put_table_device, there is access to invalid memory. Fix this race by extending the lock over the list walk.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: kernel.orgCVSS-B:7.8 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://git.kernel.org/stable/c/00ad6f9ed27f91925d4d3fb7aab50a60d774f998 kernel.org
https://git.kernel.org/stable/c/0ea6e5ad4a5817e91f11b4cc1e022e575ed2e7ca kernel.org
https://git.kernel.org/stable/c/5380c7f6335cc6d77eb77d065105e81155c4d9d3 kernel.org
https://git.kernel.org/stable/c/a1af1884c960b98c621b6fe2fea1216b78c02152 kernel.org
https://git.kernel.org/stable/c/af1f32ccf8051f4691ced11feb452b9d13561727 kernel.org

see all 6 references

Weakness Enumeration

No weakness enumeration is available for this CVE.

Affected Products

No affected product data is available for this CVE.

Change History

3 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-89998
NVD Published Date:
Sep 16, 2026
NVD Last Modified:
Sep 17, 2026
Source:
kernel.org
CVE-2026-89998 Details - Not Deferred