GHSA-GPRV-Q9Q2-HPX6
Vulnerability from github – Published: 2026-09-16 12:30 – Updated: 2026-09-16 12:30In the Linux kernel, the following vulnerability has been resolved:
usb: gadget: fix null pointer dereference in usb_put_function_instance()
usb_put_function_instance() attempts to dereference fd inside fi struct to get mod in uvc_alloc_inst() error path. However, fd is not allocated until later in try_get_usb_function_instance() after allocating fi in uvc_alloc_inst() and thus guranteed to be null in error path. Fix this by adding a null check for fi->fd that returns if fd is null.
{
"affected": [],
"aliases": [
"CVE-2026-90019"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-16T11:17:14Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: fix null pointer dereference in usb_put_function_instance()\n\nusb_put_function_instance() attempts to dereference fd inside fi struct\nto get mod in uvc_alloc_inst() error path. However, fd is not allocated\nuntil later in try_get_usb_function_instance() after allocating fi in\nuvc_alloc_inst() and thus guranteed to be null in error path. Fix this\nby adding a null check for fi-\u003efd that returns if fd is null.",
"id": "GHSA-gprv-q9q2-hpx6",
"modified": "2026-09-16T12:30:45Z",
"published": "2026-09-16T12:30:45Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90019"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0fc54a00954f9f4c3e3d4ffa64a530685d99a39b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3a9691fff79bcce95338435599df6d3ae433cfdc"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5117f236e9e30744338b425395d55913c4500897"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6e6736c049683380f5e20becde498986e9293ca4"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6e74ac5c596fd246e37eadfc354567179ccbe9aa"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6ea3a073ca97716d4a73df49a3bec1c3ccf8e2a0"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7a4f4ca7ff32ae24807c83e2a06d62b13378d53c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d3a7fa61997db3bf6dadef4c1bd87a4fa782a817"
}
],
"schema_version": "1.4.0",
"severity": []
}
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Sightings
| Author | Source | Type | Date | Other |
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Nomenclature
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Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
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Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.
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