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.
CVE-2026-97484
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-97484
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "0775a9cbc694e8c7276688be3bbd2f386167ab54",
"lessThan": "2b477ee5cc9c2670185ffd82911a20e1760008c2",
"versionType": "git"
},
{
"status": "affected",
"version": "0775a9cbc694e8c7276688be3bbd2f386167ab54",
"lessThan": "671d2687a790f63110c3c4213230209f5c3e0e8e",
"versionType": "git"
},
{
"status": "affected",
"version": "0775a9cbc694e8c7276688be3bbd2f386167ab54",
"lessThan": "fd7d938ab4759a45eb107e658c199a2c47cc1ace",
"versionType": "git"
},
{
"status": "affected",
"version": "0775a9cbc694e8c7276688be3bbd2f386167ab54",
"lessThan": "517c353e5358b2123cbf620a1798fe632fb7bdce",
"versionType": "git"
},
{
"status": "affected",
"version": "0775a9cbc694e8c7276688be3bbd2f386167ab54",
"lessThan": "046a94fdb02eb1df86c8fa4614104ff801ba3ab7",
"versionType": "git"
},
{
"status": "affected",
"version": "0775a9cbc694e8c7276688be3bbd2f386167ab54",
"lessThan": "dacd7c317ba12e035653c28a0eaaf23d91abc073",
"versionType": "git"
},
{
"status": "affected",
"version": "0775a9cbc694e8c7276688be3bbd2f386167ab54",
"lessThan": "bc150783542ba2e7c1257d1299c6f3269bdba270",
"versionType": "git"
}
],
"programFiles": [
"drivers/usb/usbip/vhci_sysfs.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4.9"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "4.9",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.271",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.222",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.189",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.158",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.111",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.53",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/usb/usbip/vhci_sysfs.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-97484
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #8344 · Revision 1
- Added to Heist Feed
- Publisher date