CVE-2026-90390

md/bitmap: resume array on backlog_store() error path

N/A
Published: September 17, 2026 at 04:09 PM UTC
Updated: October 19, 2026 at 09:19 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

58226942ad3d1423785f815ede5bcc832574f2ea6.7
Vendor states this is fixed in 03aad318f0a1f039dddf98739e705fdca3bf0d86 (fixed)
Vendor states this is fixed in 2911cd0a0f4366a7e06832bc5f0a7fdcc138e4dc (fixed)
Vendor states this is fixed in 6763fb409a0b4106676a52cf934440d9484b32c8 (fixed)
Vendor states this is fixed in cc543e769b97d563b089b9e0ebf8ad361d15076f (fixed)
Vendor states this is fixed in 6.12.110 (unaffected)
Vendor states this is fixed in 6.18.52 (unaffected)
Vendor states this is fixed in 6.7 (unaffected)
Vendor states this is fixed in 7.2.6 (unaffected)
Vendor states this is fixed in 7.3 (unaffected)
Vendor states this is fixed in 7.3-rc1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

Quick Info

StatusRECEIVED

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