CVE-2021-40490: Race Condition
First published: Fri Sep 03 2021(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | <=5.13.13 | |
| Red Hat Fedora | =33 | |
| Red Hat Fedora | =34 | |
| Debian Linux | =9.0 | |
| Debian Linux | =11.0 | |
| All of | ||
| NetApp A250 Firmware | ||
| NetApp A250 Firmware | ||
| All of | ||
| NetApp FAS500F Firmware | ||
| NetApp FAS500F Firmware | ||
| All of | ||
| NetApp H300S Firmware | ||
| NetApp H300S Firmware | ||
| All of | ||
| NetApp H500e Firmware | ||
| NetApp H500e Firmware | ||
| All of | ||
| NetApp H700S | ||
| NetApp H700S | ||
| All of | ||
| NetApp H300E | ||
| NetApp H300E Firmware | ||
| All of | ||
| NetApp H500S Firmware | ||
| NetApp H500e Firmware | ||
| All of | ||
| NetApp H700E | ||
| NetApp H700E | ||
| All of | ||
| NetApp H410S | ||
| NetApp H410S Firmware | ||
| All of | ||
| NetApp H410C | ||
| NetApp H410C Firmware | ||
| All of | ||
| NetApp H610C | ||
| NetApp H610C Firmware | ||
| All of | ||
| NetApp HCI H610S Firmware | ||
| NetApp H610S Firmware | ||
| All of | ||
| NetApp H615C | ||
| NetApp H615C | ||
| NetApp A250 Firmware | ||
| NetApp A250 Firmware | ||
| NetApp FAS500F Firmware | ||
| NetApp FAS500F Firmware | ||
| NetApp H300S Firmware | ||
| NetApp H300S Firmware | ||
| NetApp H500e Firmware | ||
| NetApp H500e Firmware | ||
| NetApp H700S | ||
| NetApp H700S | ||
| NetApp H300E | ||
| NetApp H300E Firmware | ||
| NetApp H500S Firmware | ||
| NetApp H500e Firmware | ||
| NetApp H700E | ||
| NetApp H700E | ||
| NetApp H410S | ||
| NetApp H410S Firmware | ||
| NetApp H410C | ||
| NetApp H410C Firmware | ||
| NetApp H610C | ||
| NetApp H610C Firmware | ||
| NetApp HCI H610S Firmware | ||
| NetApp H610S Firmware | ||
| NetApp H615C | ||
| NetApp H615C | ||
| debian/linux | 5.10.223-1 5.10.234-1 6.1.129-1 6.1.128-1 6.12.20-1 6.12.21-1 |
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Reference Links
- https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git/commit/?id=9e445093e523f3277081314c864f708fd4bd34aa
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XJGX3DMJT6MRBW2XEF3TWVHYWZW3DG3N/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/M6VS2DLGT7TK7URKAS2KWJL3S533SGVA/
- https://www.debian.org/security/2021/dsa-4978
- https://security.netapp.com/advisory/ntap-20211004-0001/
- https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html
- https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html
- https://launchpad.net/bugs/cve/CVE-2021-40490
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M6VS2DLGT7TK7URKAS2KWJL3S533SGVA/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XJGX3DMJT6MRBW2XEF3TWVHYWZW3DG3N/
- https://lore.kernel.org/linux-ext4/000000000000e5080305c9e51453@google.com/
- https://security-tracker.debian.org/tracker/CVE-2021-40490
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-40490
- https://nvd.nist.gov/vuln/detail/CVE-2021-40490
- https://ubuntu.com/security/CVE-2021-40490
Frequently Asked Questions
What is the severity of CVE-2021-40490?
CVE-2021-40490 is classified with a moderate severity level due to the potential for data corruption in the ext4 filesystem.
How do I fix CVE-2021-40490?
To remediate CVE-2021-40490, upgrade to a patched version of the Linux kernel, specifically versions greater than 5.13.13.
Which Linux distributions are affected by CVE-2021-40490?
CVE-2021-40490 affects various Linux distributions including Debian and Fedora, particularly versions up to their respective kernel versions 5.13.13.
What kind of vulnerability is CVE-2021-40490?
CVE-2021-40490 is a race condition vulnerability that affects the ext4 subsystem of the Linux kernel.
Can CVE-2021-40490 lead to data loss?
Yes, CVE-2021-40490 can potentially result in data loss or corruption if exploited due to the nature of the race condition.
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- vendor/linux
- canonical/linux kernel
- version/linux kernel/5.13.13
- vendor/fedoraproject
- canonical/red hat fedora
- version/red hat fedora/33
- version/red hat fedora/34
- vendor/debian
- canonical/debian linux
- version/debian linux/9.0
- version/debian linux/11.0
- vendor/netapp
- canonical/netapp a250 firmware
- canonical/netapp fas500f firmware
- canonical/netapp h300s firmware
- canonical/netapp h500e firmware
- canonical/netapp h700s
- canonical/netapp h300e
- canonical/netapp h300e firmware
- canonical/netapp h500s firmware
- canonical/netapp h700e
- canonical/netapp h410s
- canonical/netapp h410s firmware
- canonical/netapp h410c
- canonical/netapp h410c firmware
- canonical/netapp h610c
- canonical/netapp h610c firmware
- canonical/netapp hci h610s firmware
- canonical/netapp h610s firmware
- canonical/netapp h615c
- package-manager/debian