CVEvulnerability
CVE-2026-90142
7.8 HIGH
Official page ↗
- Status
- Received
- Published
- 2026-09-17
- Last modified
- 2026-10-21
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Description
In the Linux kernel, the following vulnerability has been resolved:
virtio_net: Fix resize of the RX ring
When a AF_XDP socket is attached, the virtnet_rx_resize
should resize the rq->xsk_buffs XSK buffer array. Otherwise,
when the size grows, the virtnet_rx_resume() causes a write
past the end of the array. This is easily reproducable with
ethtool -G ens3 rx 32
./xdpsock -i eth0 -q 0 -r -z &
ethtool -G eth0 rx 256
References
- https://git.kernel.org/stable/c/5235abdb760bbd7a6fcecf1890b5160b7a75a9ce git.kernel.org
- https://git.kernel.org/stable/c/5c941b5d989a15cdaa987a2c602fb168461c6186 git.kernel.org
- https://git.kernel.org/stable/c/8344c9233c8f77017174d9e280c5a26034d068b6 git.kernel.org
- https://git.kernel.org/stable/c/d09c98a6da215bce2173a292e4b95c8de6ea5d51 git.kernel.org