Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: usbip: vhci_hcd: fix NULL deref in status_show_vhci platform_get_drvdata() can return NULL if a VHCI host controller's probe failed (e.g. due to USB bus number exhaustion). status_show_vhci() checked for a NULL pdev but not for a NULL hcd returned by platform_get_drvdata(). Passing NULL to hcd_to_vhci_hcd() does not return NULL - it returns a pointer offset of 0x260, causing a NULL pointer dereference when that value is subsequently dereferenced. Add a NULL check on hcd before calling hcd_to_vhci_hcd(). Move status_show_not_ready() above status_show_vhci() to make it callable from the new error path without a forward declaration.
References
- https://git.kernel.org/stable/c/046a94fdb02eb1df86c8fa4614104ff801ba3ab7
- https://git.kernel.org/stable/c/2b477ee5cc9c2670185ffd82911a20e1760008c2
- https://git.kernel.org/stable/c/517c353e5358b2123cbf620a1798fe632fb7bdce
- https://git.kernel.org/stable/c/671d2687a790f63110c3c4213230209f5c3e0e8e
- https://git.kernel.org/stable/c/bc150783542ba2e7c1257d1299c6f3269bdba270
- https://git.kernel.org/stable/c/dacd7c317ba12e035653c28a0eaaf23d91abc073
- https://git.kernel.org/stable/c/fd7d938ab4759a45eb107e658c199a2c47cc1ace
FAQ
What is CVE-2026-97484?
CVE-2026-97484 is a documented vulnerability. In the Linux kernel, the following vulnerability has been resolved: usbip: vhci_hcd: fix NULL deref in status_show_vhci platform_get_drvdata() can return NULL if a VHCI host controller's probe faile...
How severe is CVE-2026-97484?
CVSS scoring is not yet available for CVE-2026-97484. Check NVD for updates.
Is there a patch for CVE-2026-97484?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.