block: mtip32xx: synchronize ioctls with device removal (CVE-2026-90180) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-90180

block: mtip32xx: synchronize ioctls with device removal

Answer in brief

CVE-2026-90180 records a Unknown severity vulnerability in block: mtip32xx: synchronize ioctls with device removal. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), 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 17, 2026Updated Sep 17, 2026Source checked Sep 17, 2026First seen by HOL Sep 17, 2026Material review Sep 17, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
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), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=88523a61558a040546bf7d8b079ae0755d8e7005 <521afbd936ac256b7531470b0b9aa96abf9cd853 \|\| >=88523a61558a040546bf7d8b079ae0755d8e7005 <8283049aa5fcb4e84b2b2928b2888903bb8ee12e \|\| >=88523a61558a040546bf7d8b079ae0755d8e7005 <8a7799597bd683b6bc251fe2edfa9fd1db568a3a \|\| >=88523a61558a040546bf7d8b079ae0755d8e7005 <4609e0e0be709e974bec9b52c5022136d25e97d3 \|\| >=88523a61558a040546bf7d8b079ae0755d8e7005 <b389dc35a55713ac24a145741e76196fea1663bc \|\| >=88523a61558a040546bf7d8b079ae0755d8e7005 <68940f841d013192086a0f6d7cfbac2cd079e228	521afbd936ac256b7531470b0b9aa96abf9cd853, 8283049aa5fcb4e84b2b2928b2888903bb8ee12e, 8a7799597bd683b6bc251fe2edfa9fd1db568a3a, 4609e0e0be709e974bec9b52c5022136d25e97d3, b389dc35a55713ac24a145741e76196fea1663bc, 68940f841d013192086a0f6d7cfbac2cd079e228
Linux/Linuxgeneric	3.3	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 521afbd936ac256b7531470b0b9aa96abf9cd853 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 17, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: block: mtip32xx: synchronize ioctls with device removal The ioctl handlers only test REMOVE_PENDING before entering mtip_hw_ioctl(). Removal can set that bit immediately afterwards and free dd->port in mtip_hw_exit() while an ioctl still dereferences it. An already open block device can reach the handlers while del_gendisk() is in progress. Serialize both native and compat ioctls with removal. Set REMOVE_PENDING before taking the mutex so new callers fail after an in-flight ioctl has drained, and hold the mutex until the port has been torn down.

Quoted source text, attributed separately from HOL analysis.