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CVE-2026-89997

HIGHCVSS 7.8/10

Last modified

CVE-2026-89997 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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.

Description

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.

Metrics

CVSS 3.1
7.8/10

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

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 3f77316de0ec0fd208467fbee8d9edc70e2c73b2, < 9757367bcf1d5d2c50b94d005abca21f3eedd7c3; >= 3f77316de0ec0fd208467fbee8d9edc70e2c73b2, < 1ede2bce2bd640605df83db1356fd727159bc9ed; >= 3f77316de0ec0fd208467fbee8d9edc70e2c73b2, < 3f04e6520d9a53adb1d1daf4dc5d31a60fc77d1f; >= 3f77316de0ec0fd208467fbee8d9edc70e2c73b2, < 94f3d399c1ddba763c1c5a6501f7375d533d789f; >= 3f77316de0ec0fd208467fbee8d9edc70e2c73b2, < 3b59530b14fde693e41d8e39bc326df6cbf07b76; >= 3f77316de0ec0fd208467fbee8d9edc70e2c73b2, < 36177beff2a9df035991ad8d16ccf8d363ed93ee; >= 3f77316de0ec0fd208467fbee8d9edc70e2c73b2, < 94380ecd5ff9b2a2b9f6e8a0b5c465159ccfaf71; >= 3f77316de0ec0fd208467fbee8d9edc70e2c73b2, < 44b43ec132f1cf3275ecc182d0c82f50c3c4c3d5; 305b06f7334dd43bc952b525d7232f4cae7c3818; >= 2.6.35.4, < 2.6.36
LinuxLinux2.6.36

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is 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.
How severe is CVE-2026-89997?
CVE-2026-89997 has a CVSS score of 7.8/10 (HIGH severity).
How do I fix CVE-2026-89997?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST