CVE-2026-97484

usbip: vhci_hcd: fix NULL deref in status_show_vhci

N/A
Published: September 24, 2026 at 04:04 PM UTC
Updated: October 3, 2026 at 11:17 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

4.9 ≤ v < 5.10.2714.9 ≤ v < 5.15.2224.9 ≤ v < 6.1.1894.9 ≤ v < 6.12.1114.9 ≤ v < 6.18.534.9 ≤ v < 6.6.1584.9 ≤ v < 7.24.9775a9cbc694e8c7276688be3bbd2f386167ab54
Vendor states this is fixed in 046a94fdb02eb1df86c8fa4614104ff801ba3ab7 (fixed)
Vendor states this is fixed in 2b477ee5cc9c2670185ffd82911a20e1760008c2 (fixed)
Vendor states this is fixed in 517c353e5358b2123cbf620a1798fe632fb7bdce (fixed)
Vendor states this is fixed in 671d2687a790f63110c3c4213230209f5c3e0e8e (fixed)
Vendor states this is fixed in bc150783542ba2e7c1257d1299c6f3269bdba270 (fixed)
Vendor states this is fixed in dacd7c317ba12e035653c28a0eaaf23d91abc073 (fixed)
Vendor states this is fixed in fd7d938ab4759a45eb107e658c199a2c47cc1ace (fixed)
Vendor states this is fixed in 4.9 (unaffected)
Vendor states this is fixed in 5.10.271 (unaffected)
Vendor states this is fixed in 5.15.222 (unaffected)
Vendor states this is fixed in 6.1.189 (unaffected)
Vendor states this is fixed in 6.12.111 (unaffected)
Vendor states this is fixed in 6.18.53 (unaffected)
Vendor states this is fixed in 6.6.158 (unaffected)
Vendor states this is fixed in 7.2 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

Quick Info

StatusRECEIVED

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