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UBUNTU-CVE-2020-8992

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UBUNTU-CVE-2020-8992

Published: 14 Feb 2020Last Modified: 5 Oct 2026

Upstream:

Aliases:

Summary:

Details: ext4_protect_reserved_inode in fs/ext4/block_validity.c in the Linux kernel through 5.5.3 allows attackers to cause a denial of service (soft lockup) via a crafted journal size.

References: https://ubuntu.com/security/CVE-2020-8992, https://patchwork.ozlabs.org/patch/1236118/, https://lore.kernel.org/r/[email protected], https://ubuntu.com/security/notices/USN-4318-1, https://ubuntu.com/security/notices/USN-4324-1, https://ubuntu.com/security/notices/USN-4342-1, https://ubuntu.com/security/notices/USN-4344-1, https://ubuntu.com/security/notices/USN-4419-1, https://www.cve.org/CVERecord?id=CVE-2020-8992

Affected packages

Package

Name: linux-aws

Purl: pkg:deb/ubuntu/linux-aws?arch=source&distro=trusty%2Fesm

Affected ranges

Type: ECOSYSTEM

Events:

Introduced- 0

Fixed -4.4.0-1074.78

Affected versions

4.4.0-1002.2

4.4.0-1003.3

4.4.0-1005.5

4.4.0-1006.6

4.4.0-1009.9

4.4.0-1010.10

4.4.0-1011.11

4.4.0-1012.12

4.4.0-1014.14

4.4.0-1016.16

4.4.0-1017.17

4.4.0-1019.19

4.4.0-1022.22

4.4.0-1023.23

4.4.0-1024.25

4.4.0-1025.26

4.4.0-1027.30

4.4.0-1028.31

4.4.0-1029.32

4.4.0-1031.34

4.4.0-1032.35

4.4.0-1034.37

4.4.0-1036.39

4.4.0-1037.40

4.4.0-1038.41

4.4.0-1039.42

4.4.0-1040.43

4.4.0-1042.45

4.4.0-1044.47

4.4.0-1045.48

4.4.0-1046.50

4.4.0-1048.52

4.4.0-1050.54

4.4.0-1052.56

4.4.0-1054.58

4.4.0-1055.59

4.4.0-1056.60

4.4.0-1058.62

4.4.0-1059.63

4.4.0-1060.64

4.4.0-1061.65

4.4.0-1062.66

4.4.0-1064.68

4.4.0-1065.69

4.4.0-1066.70

4.4.0-1067.71

4.4.0-1073.77

Common Vulnerability Scoring System

Attack Vector

Network

Adjacent

Local

Physical

Privileges Required

None

Low

High

User Interaction

None

Required

Scope

Unchanged

Changed

Confidentiality

None

Low

High

Integrity

None

Low

High

Availability

None

Low

High