Description
A flaw was found in the Linux kernel before 5.9-rc4. A failure of the file system metadata validator in XFS can cause an inode with a valid, user-creatable extended attribute to be flagged as corrupt. This can lead to the filesystem being shutdown, or otherwise rendered inaccessible until it is remounted, leading to a denial of service. The highest threat from this vulnerability is to system availability.
References (5)
Scores
CVSS v3
5.5
EPSS
0.0012
EPSS Percentile
30.1%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Details
CWE
CWE-131
Status
published
Products (5)
canonical/ubuntu_linux
18.04
canonical/ubuntu_linux
20.04
debian/debian_linux
9.0
linux/linux_kernel
5.9.0 (4 CPE variants)
linux/linux_kernel
< 5.9.0
Published
Sep 15, 2020
Tracked Since
Feb 18, 2026