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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.

PUBLISHED Reserved 2026-01-13 | Published 2026-02-04 | Updated 2026-02-09 | Assigner Linux

Product status

Default status
unaffected

be91128c579c86d295da4325f6ac4710e4e6d2b4 (git) before 0ad6d6e50e9d8bf596cfe77a882ddc20b29f525a
affected

be91128c579c86d295da4325f6ac4710e4e6d2b4 (git) before 4648fb2f2e7210c53b85220ee07d42d1e4bae3f9
affected

Default status
affected

6.17
affected

Any version before 6.17
unaffected

6.18.6 (semver)
unaffected

6.19 (original_commit_for_fix)
unaffected

References

git.kernel.org/...c/0ad6d6e50e9d8bf596cfe77a882ddc20b29f525a

git.kernel.org/...c/4648fb2f2e7210c53b85220ee07d42d1e4bae3f9

cve.org (CVE-2026-23042)

nvd.nist.gov (CVE-2026-23042)

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