CVE-2026-90390

high

Description

In the Linux kernel, the following vulnerability has been resolved: md/bitmap: resume array on backlog_store() error path backlog_store() suspends the array before checking whether a write-mostly device exists. If no such device exists, the error path only unlocks reconfig_mutex and leaves the array suspended, blocking subsequent I/O. Use mddev_unlock_and_resume() to release both states.

References

https://git.kernel.org/stable/c/cc543e769b97d563b089b9e0ebf8ad361d15076f

https://git.kernel.org/stable/c/6763fb409a0b4106676a52cf934440d9484b32c8

https://git.kernel.org/stable/c/2911cd0a0f4366a7e06832bc5f0a7fdcc138e4dc

https://git.kernel.org/stable/c/03aad318f0a1f039dddf98739e705fdca3bf0d86

Details

Source: Mitre, NVD

Published: 2026-09-17

Updated: 2026-09-17

Risk Information

CVSS v2

Base Score: 7.2

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 7.1

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

Severity: High

EPSS

EPSS: 0.002