VYPR
Unrated severityNVD Advisory· Published Feb 26, 2025· Updated May 4, 2025

net: tun: unlink NAPI from device on destruction

CVE-2022-49672

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.

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Affected products

167

Patches

Vulnerability mechanics

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