CVE-2026-90142
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | e9f3962441c0a4d6f16c656e6c8aa02a3ccdd568 < 8344c9233c8f77017174d9e280c5a26034d068b6 | affected |
| Linux | Linux | e9f3962441c0a4d6f16c656e6c8aa02a3ccdd568 < d09c98a6da215bce2173a292e4b95c8de6ea5d51 | affected |
| Linux | Linux | 6.11 | affected |
| Linux | Linux | 0 < 6.11 | unaffected |
| Linux | Linux | 7.2.6 <= 7.2.* | unaffected |
| Linux | Linux | 7.3-rc1 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/8344c9233c8f77017174d9e280c5a26034d068b6
- https://git.kernel.org/stable/c/d09c98a6da215bce2173a292e4b95c8de6ea5d51
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