dm: fix resume-vs-remove race

Answer in brief

CVE-2026-89997 records a Unknown severity vulnerability in dm: fix resume-vs-remove race. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 16, 2026Updated Sep 16, 2026Source checked Sep 16, 2026First seen by HOL Sep 16, 2026Material review Sep 16, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <9757367bcf1d5d2c50b94d005abca21f3eedd7c3 \|\| >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <1ede2bce2bd640605df83db1356fd727159bc9ed \|\| >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <3f04e6520d9a53adb1d1daf4dc5d31a60fc77d1f \|\| >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <94f3d399c1ddba763c1c5a6501f7375d533d789f \|\| >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <3b59530b14fde693e41d8e39bc326df6cbf07b76 \|\| >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <36177beff2a9df035991ad8d16ccf8d363ed93ee \|\| >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <94380ecd5ff9b2a2b9f6e8a0b5c465159ccfaf71 \|\| >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <44b43ec132f1cf3275ecc182d0c82f50c3c4c3d5 \|\| >=0 <5.10.270 \|\| >=0 <5.15.221 \|\| >=0 <6.1.188 \|\| >=0 <6.6.157 \|\| >=0 <6.12.110 \|\| >=0 <6.18.51 \|\| >=0 <7.2.5	9757367bcf1d5d2c50b94d005abca21f3eedd7c3, 1ede2bce2bd640605df83db1356fd727159bc9ed, 3f04e6520d9a53adb1d1daf4dc5d31a60fc77d1f, 94f3d399c1ddba763c1c5a6501f7375d533d789f, 3b59530b14fde693e41d8e39bc326df6cbf07b76, 36177beff2a9df035991ad8d16ccf8d363ed93ee, 94380ecd5ff9b2a2b9f6e8a0b5c465159ccfaf71, 44b43ec132f1cf3275ecc182d0c82f50c3c4c3d5, 5.10.270, 5.15.221, 6.1.188, 6.6.157, 6.12.110, 6.18.51, 7.2.5

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux.
Review the reported fix. Update Linux/Linux to 9757367bcf1d5d2c50b94d005abca21f3eedd7c3 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 16, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 16, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 16, 2026

Sources and claim methodology

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.