CVE-2022-4744
Published:March 30, 2023
Updated:May 18, 2026
A double-free flaw was found in the Linux kernel’s TUN/TAP device driver functionality in how a user registers the device when the register_netdevice function fails (NETDEV_REGISTER notifier). This flaw allows a local user to crash or potentially escalate their privileges on the system.
Affected Packages
linux-yocto (YOCTO):
Affected version(s) >=4.8 <4.8.24+gitAUTOINC+c84532b647_f6329fd287Fix Suggestion:
Update to version 4.8.24+gitAUTOINC+c84532b647_f6329fd287linux-libc-headers (YOCTO):
Affected version(s) >=5.4 <5.14Fix Suggestion:
Update to version 5.14linux-yocto (YOCTO):
Affected version(s) =4.9.3+gitAUTOINC+03a2d3f7f9_881cba95ae <4.10+gitAUTOINC+805ea440c7_b259a5d744Fix Suggestion:
Update to version 4.10+gitAUTOINC+805ea440c7_b259a5d744Related Resources (7)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.5
Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.8
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
EPSS
Base Score:
0.10