Vulnerability 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
CVSS Score
HIGH
References
- https://git.kernel.org/stable/c/8344c9233c8f77017174d9e280c5a26034d068b6
- https://git.kernel.org/stable/c/d09c98a6da215bce2173a292e4b95c8de6ea5d51
FAQ
What is CVE-2026-90142?
CVE-2026-90142 is a vulnerability with a CVSS score of 7.8 (HIGH). 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 ...
How severe is CVE-2026-90142?
CVE-2026-90142 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-90142?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.