CVE-2026-98351

About vulnerability

In the Linux kernel, the following vulnerability has been resolved:

wifi: virt_wifi: free skb when disconnected

When the simulated link is disconnected, virt_wifi_start_xmit() returns NET_XMIT_DROP without freeing the skb. dev_hard_start_xmit() treats this return value as consumed, so every packet sent while disconnected leaks its skb.

Free the skb before returning the drop status.

Affected product:

AlmaLinux 9.2 ESU , Amazon Linux 2 ELS , Debian 11 ELS , Oracle Linux 7 ELS , TuxCare 9.6 ESU , TuxCare 9.8 ESU , Ubuntu 20.04 ELS

Affected packages:

linux @ 5.4.0 (+6 more)

Live-patch status from KernelCare for each operating system.