CVE-2023-4394

Memory leak in btrfs_get_dev_args_from_path()

MEDIUM
6
CVSS Score
Published: August 17, 2023 at 12:49 PM UTC
Updated: June 17, 2026 at 06:37 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM6
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

A use-after-free flaw was found in btrfs_get_dev_args_from_path in fs/btrfs/volumes.c in btrfs file-system in the Linux Kernel. This flaw allows a local attacker with special privileges to cause a system crash or leak internal kernel information

Affected

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

Affected range stops below 6.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (3)

VDB Entryx_refsource_REDHATIssue TrackingThird Party Advisory
https://access.redhat.com/security/cve/CVE-2023-4394
Issue Trackingx_refsource_REDHATPatchThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2219263

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

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

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-400CWE-416

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