CVE-2026-89997

dm: fix resume-vs-remove race

State: Published
Severity: 7.8 High
Published: Sep 16, 2026
Updated: Oct 19, 2026
Reserved: Sep 11, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	3f77316de0ec0fd208467fbee8d9edc70e2c73b2 to before 9757367bcf1d5d2c50b94d005abca21f3eedd7c3Affected 3f77316de0ec0fd208467fbee8d9edc70e2c73b2 to before 1ede2bce2bd640605df83db1356fd727159bc9edAffected 3f77316de0ec0fd208467fbee8d9edc70e2c73b2 to before 3f04e6520d9a53adb1d1daf4dc5d31a60fc77d1fAffected 3f77316de0ec0fd208467fbee8d9edc70e2c73b2 to before 94f3d399c1ddba763c1c5a6501f7375d533d789fAffected 3f77316de0ec0fd208467fbee8d9edc70e2c73b2 to before 3b59530b14fde693e41d8e39bc326df6cbf07b76Affected 3f77316de0ec0fd208467fbee8d9edc70e2c73b2 to before 36177beff2a9df035991ad8d16ccf8d363ed93eeAffected 3f77316de0ec0fd208467fbee8d9edc70e2c73b2 to before 94380ecd5ff9b2a2b9f6e8a0b5c465159ccfaf71Affected 3f77316de0ec0fd208467fbee8d9edc70e2c73b2 to before 44b43ec132f1cf3275ecc182d0c82f50c3c4c3d5Affected 305b06f7334dd43bc952b525d7232f4cae7c3818Affected 2.6.35.4 to before 2.6.36Affected
LinuxLinux	2.6.36Affected before 2.6.36Not affected 5.10.270 through 5.10.Not affected 5.15.221 through 5.15.Not affected 6.1.188 through 6.1.Not affected 6.6.157 through 6.6.Not affected 6.12.110 through 6.12.Not affected 6.18.51 through 6.18.Not affected 7.2.5 through 7.2.*Not affected 7.3 and laterNot affected

Product

Versions

LinuxLinux

3f77316de0ec0fd208467fbee8d9edc70e2c73b2 to before 9757367bcf1d5d2c50b94d005abca21f3eedd7c3Affected
3f77316de0ec0fd208467fbee8d9edc70e2c73b2 to before 1ede2bce2bd640605df83db1356fd727159bc9edAffected
3f77316de0ec0fd208467fbee8d9edc70e2c73b2 to before 3f04e6520d9a53adb1d1daf4dc5d31a60fc77d1fAffected
3f77316de0ec0fd208467fbee8d9edc70e2c73b2 to before 94f3d399c1ddba763c1c5a6501f7375d533d789fAffected
3f77316de0ec0fd208467fbee8d9edc70e2c73b2 to before 3b59530b14fde693e41d8e39bc326df6cbf07b76Affected
3f77316de0ec0fd208467fbee8d9edc70e2c73b2 to before 36177beff2a9df035991ad8d16ccf8d363ed93eeAffected
3f77316de0ec0fd208467fbee8d9edc70e2c73b2 to before 94380ecd5ff9b2a2b9f6e8a0b5c465159ccfaf71Affected
3f77316de0ec0fd208467fbee8d9edc70e2c73b2 to before 44b43ec132f1cf3275ecc182d0c82f50c3c4c3d5Affected
305b06f7334dd43bc952b525d7232f4cae7c3818Affected
2.6.35.4 to before 2.6.36Affected

LinuxLinux

2.6.36Affected
before 2.6.36Not affected
5.10.270 through 5.10.*Not affected
5.15.221 through 5.15.*Not affected
6.1.188 through 6.1.*Not affected
6.6.157 through 6.6.*Not affected
6.12.110 through 6.12.*Not affected
6.18.51 through 6.18.*Not affected
7.2.5 through 7.2.*Not affected
7.3 and laterNot affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.