ghsa-mhpr-v3hf-gcxg
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
usb: dwc3: core: remove lock of otg mode during gadget suspend/resume to avoid deadlock
When config CONFIG_USB_DWC3_DUAL_ROLE is selected, and trigger system to enter suspend status with below command: echo mem > /sys/power/state There will be a deadlock issue occurring. Detailed invoking path as below: dwc3_suspend_common() spin_lock_irqsave(&dwc->lock, flags); <-- 1st dwc3_gadget_suspend(dwc); dwc3_gadget_soft_disconnect(dwc); spin_lock_irqsave(&dwc->lock, flags); <-- 2nd This issue is exposed by commit c7ebd8149ee5 ("usb: dwc3: gadget: Fix NULL pointer dereference in dwc3_gadget_suspend") that removes the code of checking whether dwc->gadget_driver is NULL or not. It causes the following code is executed and deadlock occurs when trying to get the spinlock. In fact, the root cause is the commit 5265397f9442("usb: dwc3: Remove DWC3 locking during gadget suspend/resume") that forgot to remove the lock of otg mode. So, remove the redundant lock of otg mode during gadget suspend/resume.
{
"affected": [],
"aliases": [
"CVE-2024-42085"
],
"database_specific": {
"cwe_ids": [
"CWE-667"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-07-29T17:15:11Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: dwc3: core: remove lock of otg mode during gadget suspend/resume to avoid deadlock\n\nWhen config CONFIG_USB_DWC3_DUAL_ROLE is selected, and trigger system\nto enter suspend status with below command:\necho mem \u003e /sys/power/state\nThere will be a deadlock issue occurring. Detailed invoking path as\nbelow:\ndwc3_suspend_common()\n spin_lock_irqsave(\u0026dwc-\u003elock, flags); \u003c-- 1st\n dwc3_gadget_suspend(dwc);\n dwc3_gadget_soft_disconnect(dwc);\n spin_lock_irqsave(\u0026dwc-\u003elock, flags); \u003c-- 2nd\nThis issue is exposed by commit c7ebd8149ee5 (\"usb: dwc3: gadget: Fix\nNULL pointer dereference in dwc3_gadget_suspend\") that removes the code\nof checking whether dwc-\u003egadget_driver is NULL or not. It causes the\nfollowing code is executed and deadlock occurs when trying to get the\nspinlock. In fact, the root cause is the commit 5265397f9442(\"usb: dwc3:\nRemove DWC3 locking during gadget suspend/resume\") that forgot to remove\nthe lock of otg mode. So, remove the redundant lock of otg mode during\ngadget suspend/resume.",
"id": "GHSA-mhpr-v3hf-gcxg",
"modified": "2024-08-26T15:31:14Z",
"published": "2024-07-29T18:30:40Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-42085"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/17e2956633ca560b95f1cbbb297cfc2adf650649"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7026576e89094aa9a0062aa6d10cba18aa99944c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7838de15bb700c2898a7d741db9b1f3cbc86c136"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d77e2b5104c51d3668b9717c825a4a06998efe63"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f1274cfab183e69a7c7bafffcb4f50703c876276"
}
],
"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"
}
]
}
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
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