CVE-2022-49672

In the Linux kernel, the following vulnerability has been resolved: net: tun: unlink NAPI from device on destruction Syzbot found a race between tun file and device destruction. NAPIs live in struct tun_file which can get destroyed before the netdev so we have to del them explicitly. The current code is missing deleting the NAPI if the queue was detached first.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/3b9bc84d311104906d2b4995a9a02d7b7ddab2db	Patch
https://git.kernel.org/stable/c/8145f77d38de4f88b8a69e1463f5c09ba189d77c	Patch
https://git.kernel.org/stable/c/82e729aee59acefe135fceffadcbc5b86dd4f1b9	Patch
https://git.kernel.org/stable/c/8661d4b8faa2f7ee7a559969c0a7c57f077b1728	Patch
https://git.kernel.org/stable/c/a8cf919022373c97a84fe596bbea544f909c485d	Patch
https://git.kernel.org/stable/c/bec1be0a745ab420718217e3e0d9542a75108989	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:5.19:rc1::::::
	cpe:2.3:o:linux:linux_kernel:5.19:rc2::::::
	cpe:2.3:o:linux:linux_kernel:5.19:rc3::::::
	cpe:2.3:o:linux:linux_kernel:5.19:rc4::::::

History

No history.

Information

Published : 2025-02-26 07:01

Updated : 2025-10-24 15:52

NVD link : CVE-2022-49672

Mitre link : CVE-2022-49672

CVE.ORG link : CVE-2022-49672

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-noinfo

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