CVE-2026-97484 is a vulnerability in Linux Kernel
Published on September 24, 2026
usbip: vhci_hcd: fix NULL deref in status_show_vhci
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.
Products Associated with CVE-2026-97484
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Affected Versions
Linux:- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below 046a94fdb02eb1df86c8fa4614104ff801ba3ab7 is affected.
- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below dacd7c317ba12e035653c28a0eaaf23d91abc073 is affected.
- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below bc150783542ba2e7c1257d1299c6f3269bdba270 is affected.
- Before 6.12.111 is affected.
- Before 6.18.53 is affected.
- Version 6.12.111, <= 6.12.* is unaffected.
- Version 6.18.53, <= 6.18.* is unaffected.
- Version 7.2, <= * is unaffected.