CVE-2026-89997

In the Linux kernel, the following vulnerability has been resolved: dm: fix resume-vs-remove race If the user issues the resume ioctl and the remove ioctl at the same time, it may be possible that the device is resumed after it is suspended in __dm_destroy. The result is that the table is destroyed without calling the postsuspend method. Dm targets expect that they may be removed only after the postsuspend method method was called. If we break this expectation, it can cause misbehavior in various targets. For example - in the dm-integrity target, the reboot notifier is not unregistered, leading to use-after-free. Fix this bug by refusing to resume if the device is being destroyed.

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/1ede2bce2bd640605df83db1356fd727159bc9ed
https://git.kernel.org/stable/c/36177beff2a9df035991ad8d16ccf8d363ed93ee
https://git.kernel.org/stable/c/3b59530b14fde693e41d8e39bc326df6cbf07b76
https://git.kernel.org/stable/c/3f04e6520d9a53adb1d1daf4dc5d31a60fc77d1f
https://git.kernel.org/stable/c/44b43ec132f1cf3275ecc182d0c82f50c3c4c3d5
https://git.kernel.org/stable/c/94380ecd5ff9b2a2b9f6e8a0b5c465159ccfaf71
https://git.kernel.org/stable/c/94f3d399c1ddba763c1c5a6501f7375d533d789f
https://git.kernel.org/stable/c/9757367bcf1d5d2c50b94d005abca21f3eedd7c3

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-2026-89997

Mitre link : CVE-2026-89997

CVE.ORG link : CVE-2026-89997

JSON object : View

Products Affected

No product.

CWE

No CWE.

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The result is that the table is destroyed without\ncalling the postsuspend method.\n\nDm targets expect that they may be removed only after the postsuspend\nmethod method was called. If we break this expectation, it can cause\nmisbehavior in various targets. For example - in the dm-integrity target,\nthe reboot notifier is not unregistered, leading to use-after-free.\n\nFix this bug by refusing to resume if the device is being destroyed."}], "lastModified": "2026-09-17T10:17:05.510", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}