CVE-2026-89998

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.

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/00ad6f9ed27f91925d4d3fb7aab50a60d774f998
https://git.kernel.org/stable/c/0ea6e5ad4a5817e91f11b4cc1e022e575ed2e7ca
https://git.kernel.org/stable/c/5380c7f6335cc6d77eb77d065105e81155c4d9d3
https://git.kernel.org/stable/c/a1af1884c960b98c621b6fe2fea1216b78c02152
https://git.kernel.org/stable/c/af1f32ccf8051f4691ced11feb452b9d13561727
https://git.kernel.org/stable/c/b02e35b81176c7d61dd441cc7a2e5c324a82444b

Configurations

No configuration.

History

16 Sep 2026, 15:18

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.8

Information

Published : 2026-09-16 11:17

Updated : 2026-09-17 10:17

NVD link : CVE-2026-89998

Mitre link : CVE-2026-89998

CVE.ORG link : CVE-2026-89998

JSON object : View

Products Affected

No product.

CWE

No CWE.

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