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CVE-2023-6270

HIGH CVSS 3.1: 7.0 EPSS 0.02%
Updated Mar 24, 2026
Fedoraproject
Parameter Value
CVSS 7.0 (HIGH)
Affected Versions before 6.9
Fixed In 6.9
Type CWE-416 (Use After Free)
Vendor Fedoraproject
Public PoC No

A flaw was found in the ATA over Ethernet (AoE) driver in the Linux kernel. The aoecmd_cfg_pkts() function improperly updates the refcnt on `struct net_device`, and a use-after-free can be triggered by racing between the free on the struct and the access through the `skbtxq` global queue. This could lead to a denial of service condition or potential code execution.

Attack Parameters

Attack Vector
Local
Requires local access
Attack Complexity
High
Difficult to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Weakness Type (CWE)

Vulnerable Products 3

Configuration From (including) Up to (excluding)
Debian Debian_Linux
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
Linux Linux_Kernel
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
6.9
Fedoraproject Fedora
cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*