CVE-2026-23042
Unknown
Description
In the Linux kernel, the following vulnerability has been resolved: idpf: fix aux device unplugging when rdma is not supported by vport If vport flags do not contain VIRTCHNL2_VPORT_ENABLE_RDMA, driver does not allocate vdev_info for this vport. This leads to kernel NULL pointer dereference in idpf_idc_vport_dev_down(), which references vdev_info for every vport regardless. Check, if vdev_info was ever allocated before unplugging aux device.
SeverityUnknown
CVSS—
Exploit probability—
Product
Linux
PublishedFeb 4, 2026
First seenFeb 4, 2026
How to fix
Update
- Linux Linux0ad6d6e50e9d8bf596cfe77a882ddc20b29f525a, 4648fb2f2e7210c53b85220ee07d42d1e4bae3f9 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | be91128c579c86d295da4325f6ac4710e4e6d2b4 ≤ v < 0ad6d6e50e9d8bf596cfe77a882ddc20b29f525a, be91128c579c86d295da4325f6ac4710e4e6d2b4 ≤ v < 4648fb2f2e7210c53b85220ee07d42d1e4bae3f9, 6.17 | 0ad6d6e50e9d8bf596cfe77a882ddc20b29f525a, 4648fb2f2e7210c53b85220ee07d42d1e4bae3f9 |
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