CVE-2026-23042
N/A
N/A
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | be91128c579c86d295da4325f6ac4710e4e6d2b4 < 0ad6d6e50e9d8bf596cfe77a882ddc20b29f525a | affected |
| Linux | Linux | be91128c579c86d295da4325f6ac4710e4e6d2b4 < 4648fb2f2e7210c53b85220ee07d42d1e4bae3f9 | affected |
| Linux | Linux | 6.17 | affected |
| Linux | Linux | 0 < 6.17 | unaffected |
| Linux | Linux | 6.18.6 <= 6.18.* | unaffected |
| Linux | Linux | 6.19 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/0ad6d6e50e9d8bf596cfe77a882ddc20b29f525a
- https://git.kernel.org/stable/c/4648fb2f2e7210c53b85220ee07d42d1e4bae3f9
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