CVE-2022-49672

net: tun: unlink NAPI from device on destruction

Description

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.

N/A

CVSS

Severity:

EPSS 0.10%

Affected: Linux Linux

References

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

Frequently Asked Questions

What is the severity of CVE-2022-49672?: CVE-2022-49672 has not yet been assigned a CVSS score.
How to fix CVE-2022-49672?: To fix CVE-2022-49672, 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-2022-49672 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2022-49672 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-2022-49672?: CVE-2022-49672 affects Linux Linux, Linux Linux.

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