CVE-2021-40490

A race condition was discovered in ext4_write_inline_data_end in fs/ext4/inline.c in the ext4 subsystem in the Linux kernel through 5.13.13.

What this means for your business

It affects Netapp Solidfire Baseboard Management Controller. It matters if your company, or a supplier that handles your data, runs it.
An attacker can use it only with access to the machine itself, with an ordinary user login, and without anyone at your company clicking anything.
FIRST's prediction model gives it a 0.3% chance of attack attempts being seen in the next 30 days, ranking above 23% of all known flaws.

What to do

1Check whether your company or your suppliers run Netapp Solidfire Baseboard Management Controller, and which version. The affected versions are listed further down this page.
2If you do, apply the vendor's fix. A patch or vendor advisory has been published.

Not sure if your company is exposed?

Fastnexa’s certified penetration testers can check whether attackers could use this flaw, or others like it, against your websites, apps and network. The full test is free for our first 10 founding clients until 31 December 2026.

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Scoring

CVSS: 7.0 (v3.1)
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-362
Assigned by: cve@mitre.org

Dates

Published: 2021-09-03
Last modified: 2026-08-13
Sources: NVD

Affected products

Netapp Solidfire Baseboard Management Controllerall versions
Linux Linux Kernel3.8 - 4.4.284, 4.5 - 4.9.283, 4.10 - 4.14.247, 4.15 - 4.19.207, 4.20 - 5.4.145, 5.5 - 5.10.63, 5.11 - 5.13.15, 5.14 - 5.14.2
Fedoraproject Fedora33, 34
Debian Debian Linux9.0, 11.0
Netapp Aff A250 Firmwareall versions
Netapp Aff A250all versions
Netapp Fas 500f Firmwareall versions
Netapp Fas 500fall versions
Netapp H300s Firmwareall versions
Netapp H300sall versions
Netapp H500s Firmwareall versions
Netapp H500sall versions

As listed in the NVD configuration data. Not a statement about your estate.