CVE-2021-45469
kernel: out-of-bounds memory access in __f2fs_setxattr() in fs/f2fs/xattr.c when an inode has an invalid last xattr entry
Severity
ImportantRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · December 6, 2021
Updated · November 22, 2025
Description
An out-of-bounds memory access flaw in the Linux kernel's F2FS (Flash-Friendly File System) functionality was found in the way users mount and operate corrupted image of this file-system if an inode has an invalid last xattr entry. A local user could use this flaw to crash the system or escalate their privileges on the system.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 8.4CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE-125 · Out-of-bounds Read