{"id":"CVE-2026-97484","title":"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","summary":"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 exhaust…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-476"],"vendor":"Linux","product":"Linux","affected":["Linux >= 0775a9cbc694e8c7276688be3bbd2f386167ab54 < 2b477ee5cc9c2670185ffd82911a20e1760008c2","Linux >= 0775a9cbc694e8c7276688be3bbd2f386167ab54 < 671d2687a790f63110c3c4213230209f5c3e0e8e","Linux >= 0775a9cbc694e8c7276688be3bbd2f386167ab54 < fd7d938ab4759a45eb107e658c199a2c47cc1ace","Linux >= 0775a9cbc694e8c7276688be3bbd2f386167ab54 < 517c353e5358b2123cbf620a1798fe632fb7bdce","Linux >= 0775a9cbc694e8c7276688be3bbd2f386167ab54 < 046a94fdb02eb1df86c8fa4614104ff801ba3ab7","Linux >= 0775a9cbc694e8c7276688be3bbd2f386167ab54 < dacd7c317ba12e035653c28a0eaaf23d91abc073","Linux >= 0775a9cbc694e8c7276688be3bbd2f386167ab54 < bc150783542ba2e7c1257d1299c6f3269bdba270","Linux 4.9"],"published":"2026-09-24","updated":"2026-10-03","sourceUpdated":"2026-10-03T11:17:58.343","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-97484","references":[{"url":"https://git.kernel.org/stable/c/046a94fdb02eb1df86c8fa4614104ff801ba3ab7","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/2b477ee5cc9c2670185ffd82911a20e1760008c2","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/517c353e5358b2123cbf620a1798fe632fb7bdce","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/671d2687a790f63110c3c4213230209f5c3e0e8e","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/bc150783542ba2e7c1257d1299c6f3269bdba270","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/dacd7c317ba12e035653c28a0eaaf23d91abc073","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/fd7d938ab4759a45eb107e658c199a2c47cc1ace","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-97484.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-97484"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2540495"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-97484"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-97484"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-97484.mbox"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"epss":0.00173,"epssPercentile":0.06628,"cvssSource":"vendor","ingestedAt":"2026-09-24T16:47:15.869Z","slug":"CVE-2026-97484","body":"## Overview\n\nIn 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Low · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · updated 2026-10-17 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-97484.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":213451,"id":"CVE-2026-97484","ts":1790754731203,"field":"cvss","old":null,"new":"5.5"},{"seq":213450,"id":"CVE-2026-97484","ts":1790754731203,"field":"severity","old":"none","new":"medium"}]}