{"id":"CVE-2026-97484","summary":"usbip: vhci_hcd: fix NULL deref in status_show_vhci","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nusbip: vhci_hcd: fix NULL deref in status_show_vhci\n\nplatform_get_drvdata() can return NULL if a VHCI host controller's\nprobe failed (e.g. due to USB bus number exhaustion). status_show_vhci()\nchecked for a NULL pdev but not for a NULL hcd returned by\nplatform_get_drvdata(). Passing NULL to hcd_to_vhci_hcd() does not\nreturn NULL - it returns a pointer offset of 0x260, causing a NULL\npointer dereference when that value is subsequently dereferenced.\n\nAdd a NULL check on hcd before calling hcd_to_vhci_hcd(). Move\nstatus_show_not_ready() above status_show_vhci() to make it callable\nfrom the new error path without a forward declaration.","modified":"2026-10-22T10:30:42.454785249Z","published":"2026-09-24T16:04:27.978Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/97xxx/CVE-2026-97484.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/046a94fdb02eb1df86c8fa4614104ff801ba3ab7"},{"type":"WEB","url":"https://git.kernel.org/stable/c/2b477ee5cc9c2670185ffd82911a20e1760008c2"},{"type":"WEB","url":"https://git.kernel.org/stable/c/517c353e5358b2123cbf620a1798fe632fb7bdce"},{"type":"WEB","url":"https://git.kernel.org/stable/c/671d2687a790f63110c3c4213230209f5c3e0e8e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/bc150783542ba2e7c1257d1299c6f3269bdba270"},{"type":"WEB","url":"https://git.kernel.org/stable/c/dacd7c317ba12e035653c28a0eaaf23d91abc073"},{"type":"WEB","url":"https://git.kernel.org/stable/c/fd7d938ab4759a45eb107e658c199a2c47cc1ace"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/97xxx/CVE-2026-97484.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-97484"},{"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":"0775a9cbc694e8c7276688be3bbd2f386167ab54"},{"fixed":"2b477ee5cc9c2670185ffd82911a20e1760008c2"},{"fixed":"671d2687a790f63110c3c4213230209f5c3e0e8e"},{"fixed":"fd7d938ab4759a45eb107e658c199a2c47cc1ace"},{"fixed":"517c353e5358b2123cbf620a1798fe632fb7bdce"},{"fixed":"046a94fdb02eb1df86c8fa4614104ff801ba3ab7"},{"fixed":"dacd7c317ba12e035653c28a0eaaf23d91abc073"},{"fixed":"bc150783542ba2e7c1257d1299c6f3269bdba270"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-97484.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.9.0"},{"fixed":"5.10.271"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.222"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.189"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.158"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.111"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.53"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-97484.json"}}],"schema_version":"1.9.2"}