CVE-2021-41073

Published: Sep 19, 2021Modified: Jun 17, 2026

7.8

Vector

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

Exploitability: 1.8 / Impact: 5.9

Source: NVD

Description

loop_rw_iter in fs/io_uring.c in the Linux kernel 5.10 through 5.14.6 allows local users to gain privileges by using IORING_OP_PROVIDE_BUFFERS to trigger a free of a kernel buffer, as demonstrated by using /proc/<pid>/maps for exploitation.

Affected (15)

Products: Linux: Linux Kernel · Debian: Debian Linux · Fedoraproject: Fedora · +1 more

Show all products

Linux: Linux Kernel · Debian: Debian Linux · Fedoraproject: Fedora · Netapp: Cloud Backup, Solidfire Baseboard Management Controller, H300s Firmware, H500s Firmware, H700s Firmware, H300e Firmware, H500e Firmware, H700e Firmware, H410s Firmware, H410c Firmware

1 product

1 product

1 product

10 products

Solidfire Baseboard Management Controller

Configuration A

2 vulnerable

Vulnerable Software	Affected Versions
Linux Linux Kernel	From 5.10 to 5.10.68
Linux Linux Kernel	From 5.11 to 5.14.7

Configuration B

1 vulnerable

Vulnerable Software	Affected Versions
Debian Debian Linux	Version 10.0

Configuration C

2 vulnerable

Vulnerable Software	Affected Versions
Fedoraproject Fedora	Version 33
Fedoraproject Fedora	Version 34

Configuration D

2 vulnerable

Vulnerable Software	Affected Versions
Netapp Cloud Backup	All versions
Netapp Solidfire Baseboard Management Controller	All versions

Configuration F

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netapp H300s Firmware	All versions

Running on/with	Platform Versions
Netapp H300s	All versions

Configuration G

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netapp H500s Firmware	All versions

Running on/with	Platform Versions
Netapp H500s	All versions

Configuration H

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netapp H700s Firmware	All versions

Running on/with	Platform Versions
Netapp H700s	All versions

Configuration I

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netapp H300e Firmware	All versions

Running on/with	Platform Versions
Netapp H300e	All versions

Configuration J

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netapp H500e Firmware	All versions

Running on/with	Platform Versions
Netapp H500e	All versions

Configuration K

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netapp H700e Firmware	All versions

Running on/with	Platform Versions
Netapp H700e	All versions

Configuration L

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netapp H410s Firmware	All versions

Running on/with	Platform Versions
Netapp H410s	All versions

Configuration M

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Netapp H410c Firmware	All versions

Running on/with	Platform Versions
Netapp H410c	All versions

Related CWEs

CWE-763

Release of Invalid Pointer or Reference

The product attempts to return a memory resource to the system, but it calls the wrong release function or calls the appropriate release function incorrectly.

References (20)

http://www.openwall.com/lists/oss-security/2021/09/18/2

Source: cve@mitre.org

Mailing ListThird Party Advisory

http://www.openwall.com/lists/oss-security/2021/09/18/2

Source: cve@mitre.org

Mailing ListThird Party Advisory

http://www.openwall.com/lists/oss-security/2021/09/18/2

Source: cve@mitre.org

Mailing ListThird Party Advisory

http://www.openwall.com/lists/oss-security/2021/09/18/2

Source: cve@mitre.org

Mailing ListThird Party Advisory

http://www.openwall.com/lists/oss-security/2022/06/04/4

Source: cve@mitre.org

Mailing ListThird Party Advisory

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=16c8d2df7ec0eed31b7d3b61cb13206a7fb930cc

Source: cve@mitre.org

PatchVendor Advisory

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J7KSMIOQ4377CVTHMWNGNCWHMCRFRP2T/

Source: cve@mitre.org

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PAP4TXEZ7J4EZQMQW5SIJMWXG7WZT3F7/

Source: cve@mitre.org

https://security.netapp.com/advisory/ntap-20211014-0003/

Source: cve@mitre.org

Third Party Advisory

https://www.debian.org/security/2021/dsa-4978

Source: cve@mitre.org

Third Party Advisory

http://www.openwall.com/lists/oss-security/2021/09/18/2

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing ListThird Party Advisory

http://www.openwall.com/lists/oss-security/2021/09/18/2

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing ListThird Party Advisory

http://www.openwall.com/lists/oss-security/2021/09/18/2

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing ListThird Party Advisory

http://www.openwall.com/lists/oss-security/2021/09/18/2

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing ListThird Party Advisory

http://www.openwall.com/lists/oss-security/2022/06/04/4

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing ListThird Party Advisory

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=16c8d2df7ec0eed31b7d3b61cb13206a7fb930cc

Source: af854a3a-2127-422b-91ae-364da2661108

PatchVendor Advisory

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J7KSMIOQ4377CVTHMWNGNCWHMCRFRP2T/

Source: af854a3a-2127-422b-91ae-364da2661108

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PAP4TXEZ7J4EZQMQW5SIJMWXG7WZT3F7/

Source: af854a3a-2127-422b-91ae-364da2661108

https://security.netapp.com/advisory/ntap-20211014-0003/

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

https://www.debian.org/security/2021/dsa-4978

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

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