CVE-2025-40236
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
04/12/2025
Last modified:
04/12/2025
Description
In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
virtio-net: zero unused hash fields<br />
<br />
When GSO tunnel is negotiated virtio_net_hdr_tnl_from_skb() tries to<br />
initialize the tunnel metadata but forget to zero unused rxhash<br />
fields. This may leak information to another side. Fixing this by<br />
zeroing the unused hash fields.