{"id":"CVE-2026-23042","summary":"idpf: fix aux device unplugging when rdma is not supported by vport","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nidpf: fix aux device unplugging when rdma is not supported by vport\n\nIf vport flags do not contain VIRTCHNL2_VPORT_ENABLE_RDMA, driver does not\nallocate vdev_info for this vport. This leads to kernel NULL pointer\ndereference in idpf_idc_vport_dev_down(), which references vdev_info for\nevery vport regardless.\n\nCheck, if vdev_info was ever allocated before unplugging aux device.","modified":"2026-04-02T17:30:11.309807284Z","published":"2026-02-04T16:00:25.466Z","related":["SUSE-SU-2026:20838-1","SUSE-SU-2026:20931-1","openSUSE-SU-2026:20416-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23042.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/0ad6d6e50e9d8bf596cfe77a882ddc20b29f525a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4648fb2f2e7210c53b85220ee07d42d1e4bae3f9"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23042.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-23042"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"be91128c579c86d295da4325f6ac4710e4e6d2b4"},{"fixed":"0ad6d6e50e9d8bf596cfe77a882ddc20b29f525a"},{"fixed":"4648fb2f2e7210c53b85220ee07d42d1e4bae3f9"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-23042.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.17.0"},{"fixed":"6.18.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-23042.json"}}],"schema_version":"1.7.5"}