vulntracker.iovulntracker.io
© 2026 vulntracker.io

CVE-2023-52681

efivarfs: Free s_fs_info on unmount

MEDIUM
5.5
CVSS Score
Published: May 17, 2024 at 02:24 PM UTC
Updated: June 17, 2026 at 06:43 AM UTC
1 product affected across 1 vendorLinux Kernel

Using Linux by Linux?

Get instant alerts when new vulnerabilities affect Linux - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Start FreeSign In
Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: efivarfs: Free s_fs_info on unmount Now that we allocate a s_fs_info struct on fs context creation, we should ensure that we free it again when the superblock goes away.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
6.7 ≤ v < 6.7.26.7 ≤ v < 6.85329aa5101f73c451bcd48deaf3f296685849d9c6.7
Vendor states this is fixed in 547713d502f7b4b8efccd409cff84d731a23853b (fixed)
Vendor states this is fixed in 92be3095c6ca1cdc46237839c6087555be9160e3 (fixed)
Vendor states this is fixed in 6.7 (unaffected)
Vendor states this is fixed in 6.7.2 (unaffected)
Vendor states this is fixed in 6.8 (unaffected)

References (4)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/547713d502f7b4b8efccd409cff84d731a23853b
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/92be3095c6ca1cdc46237839c6087555be9160e3
Patch
Source: af854a3a-2127-422b-91ae-364da2661108
https://git.kernel.org/stable/c/48be1364dd387e375e1274b76af986cb8747be2c
Patch
Source: af854a3a-2127-422b-91ae-364da2661108
https://git.kernel.org/stable/c/ea6b597fcaca99562fa56a473bcbbbd79b40af03

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.5MEDIUM[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-401

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create accountSign in
Free plan, no card