CVE-2022-4744

Description

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.

Categories

7.8
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.08%
Vendor Advisory kernel.org
Affected: n/a Kernel
Published at:
Updated at:

References

Link Tags
https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=158b515f703e vendor advisory
http://packetstormsecurity.com/files/171912/CentOS-Stream-9-Missing-Kernel-Security-Fix.html third party advisory vdb entry
https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html third party advisory mailing list
https://security.netapp.com/advisory/ntap-20230526-0009/ third party advisory

Frequently Asked Questions

What is the severity of CVE-2022-4744?
CVE-2022-4744 has been scored as a high severity vulnerability.
How to fix CVE-2022-4744?
To fix CVE-2022-4744, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-4744 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-4744 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-4744?
CVE-2022-4744 affects n/a Kernel.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.