GHSA-XQ4P-6J59-JFV4
Vulnerability from github – Published: 2024-05-17 15:31 – Updated: 2025-11-03 21:31In the Linux kernel, the following vulnerability has been resolved:
usb: typec: altmodes/displayport: create sysfs nodes as driver's default device attribute group
The DisplayPort driver's sysfs nodes may be present to the userspace before typec_altmode_set_drvdata() completes in dp_altmode_probe. This means that a sysfs read can trigger a NULL pointer error by deferencing dp->hpd in hpd_show or dp->lock in pin_assignment_show, as dev_get_drvdata() returns NULL in those cases.
Remove manual sysfs node creation in favor of adding attribute group as default for devices bound to the driver. The ATTRIBUTE_GROUPS() macro is not used here otherwise the path to the sysfs nodes is no longer compliant with the ABI.
{
"affected": [],
"aliases": [
"CVE-2024-35790"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-17T13:15:58Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: altmodes/displayport: create sysfs nodes as driver\u0027s default device attribute group\n\nThe DisplayPort driver\u0027s sysfs nodes may be present to the userspace before\ntypec_altmode_set_drvdata() completes in dp_altmode_probe. This means that\na sysfs read can trigger a NULL pointer error by deferencing dp-\u003ehpd in\nhpd_show or dp-\u003elock in pin_assignment_show, as dev_get_drvdata() returns\nNULL in those cases.\n\nRemove manual sysfs node creation in favor of adding attribute group as\ndefault for devices bound to the driver. The ATTRIBUTE_GROUPS() macro is\nnot used here otherwise the path to the sysfs nodes is no longer compliant\nwith the ABI.",
"id": "GHSA-xq4p-6j59-jfv4",
"modified": "2025-11-03T21:31:05Z",
"published": "2024-05-17T15:31:08Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35790"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0ad011776c057ce881b7fd6d8c79ecd459c087e9"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/165376f6b23e9a779850e750fb2eb06622e5a531"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/4a22aeac24d0d5f26ba741408e8b5a4be6dc5dc0"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6b989ea1c479533ab8dbfbeb1704c94b1d3320da"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/9794ffd9d0c39ee070fbd733f862bbe89b28ba33"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f1c5ddaef506e3517dce338c08a60663b1521920"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
}
],
"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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