CVE-2026-90180

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.

Database specific

{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90180.json"
}

References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type: GIT
Repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events: Introduced

88523a61558a040546bf7d8b079ae0755d8e7005

Fixed

521afbd936ac256b7531470b0b9aa96abf9cd853

Fixed

8283049aa5fcb4e84b2b2928b2888903bb8ee12e

Fixed

8a7799597bd683b6bc251fe2edfa9fd1db568a3a

Fixed

4609e0e0be709e974bec9b52c5022136d25e97d3

Fixed

b389dc35a55713ac24a145741e76196fea1663bc

Fixed

68940f841d013192086a0f6d7cfbac2cd079e228

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90180.json"

Linux / Kernel

Package

Name: Kernel

Affected ranges

Type: ECOSYSTEM
Events: Introduced

3.3.0

Fixed

6.1.188

Type: ECOSYSTEM
Events: Introduced

6.2.0

Fixed

6.6.157

Type: ECOSYSTEM
Events: Introduced

6.7.0

Fixed

6.12.110

Type: ECOSYSTEM
Events: Introduced

6.13.0

Fixed

6.18.52

Type: ECOSYSTEM
Events: Introduced

6.19.0

Fixed

7.2.6

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90180.json"