GHSA-M8P7-HJG2-3XQJ
Vulnerability from github – Published: 2026-02-04 18:30 – Updated: 2026-04-18 09:30In the Linux kernel, the following vulnerability has been resolved:
can: gs_usb: gs_usb_receive_bulk_callback(): unanchor URL on usb_submit_urb() error
In commit 7352e1d5932a ("can: gs_usb: gs_usb_receive_bulk_callback(): fix URB memory leak"), the URB was re-anchored before usb_submit_urb() in gs_usb_receive_bulk_callback() to prevent a leak of this URB during cleanup.
However, this patch did not take into account that usb_submit_urb() could fail. The URB remains anchored and usb_kill_anchored_urbs(&parent->rx_submitted) in gs_can_close() loops infinitely since the anchor list never becomes empty.
To fix the bug, unanchor the URB when an usb_submit_urb() error occurs, also print an info message.
{
"affected": [],
"aliases": [
"CVE-2026-23082"
],
"database_specific": {
"cwe_ids": [
"CWE-835"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-02-04T17:16:19Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: gs_usb: gs_usb_receive_bulk_callback(): unanchor URL on usb_submit_urb() error\n\nIn commit 7352e1d5932a (\"can: gs_usb: gs_usb_receive_bulk_callback(): fix\nURB memory leak\"), the URB was re-anchored before usb_submit_urb() in\ngs_usb_receive_bulk_callback() to prevent a leak of this URB during\ncleanup.\n\nHowever, this patch did not take into account that usb_submit_urb() could\nfail. The URB remains anchored and\nusb_kill_anchored_urbs(\u0026parent-\u003erx_submitted) in gs_can_close() loops\ninfinitely since the anchor list never becomes empty.\n\nTo fix the bug, unanchor the URB when an usb_submit_urb() error occurs,\nalso print an info message.",
"id": "GHSA-m8p7-hjg2-3xqj",
"modified": "2026-04-18T09:30:17Z",
"published": "2026-02-04T18:30:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23082"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/79a6d1bfe1148bc921b8d7f3371a7fbce44e30f7"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/aa8a8866c533a150be4763bcb27993603bd5426c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c3edc14da81a8d8398682f6e4ab819f09f37c0b7"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c610b550ccc0438d456dfe1df9f4f36254ccaae3"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ce4352057fc5a986c76ece90801b9755e7c6e56c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/da01de754e455e2598a7f1ce4ff2078c4f0ecde1"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
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