ghsa-vpp5-35pq-5g47
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
thunderbolt: Do not double dequeue a configuration request
Some of our devices crash in tb_cfg_request_dequeue():
general protection fault, probably for non-canonical address 0xdead000000000122
CPU: 6 PID: 91007 Comm: kworker/6:2 Tainted: G U W 6.6.65 RIP: 0010:tb_cfg_request_dequeue+0x2d/0xa0 Call Trace: ? tb_cfg_request_dequeue+0x2d/0xa0 tb_cfg_request_work+0x33/0x80 worker_thread+0x386/0x8f0 kthread+0xed/0x110 ret_from_fork+0x38/0x50 ret_from_fork_asm+0x1b/0x30
The circumstances are unclear, however, the theory is that tb_cfg_request_work() can be scheduled twice for a request: first time via frame.callback from ring_work() and second time from tb_cfg_request(). Both times kworkers will execute tb_cfg_request_dequeue(), which results in double list_del() from the ctl->request_queue (the list poison deference hints at it: 0xdead000000000122).
Do not dequeue requests that don't have TB_CFG_REQUEST_ACTIVE bit set.
{
"affected": [],
"aliases": [
"CVE-2025-38174"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-07-04T11:15:51Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nthunderbolt: Do not double dequeue a configuration request\n\nSome of our devices crash in tb_cfg_request_dequeue():\n\n general protection fault, probably for non-canonical address 0xdead000000000122\n\n CPU: 6 PID: 91007 Comm: kworker/6:2 Tainted: G U W 6.6.65\n RIP: 0010:tb_cfg_request_dequeue+0x2d/0xa0\n Call Trace:\n \u003cTASK\u003e\n ? tb_cfg_request_dequeue+0x2d/0xa0\n tb_cfg_request_work+0x33/0x80\n worker_thread+0x386/0x8f0\n kthread+0xed/0x110\n ret_from_fork+0x38/0x50\n ret_from_fork_asm+0x1b/0x30\n\nThe circumstances are unclear, however, the theory is that\ntb_cfg_request_work() can be scheduled twice for a request:\nfirst time via frame.callback from ring_work() and second\ntime from tb_cfg_request(). Both times kworkers will execute\ntb_cfg_request_dequeue(), which results in double list_del()\nfrom the ctl-\u003erequest_queue (the list poison deference hints\nat it: 0xdead000000000122).\n\nDo not dequeue requests that don\u0027t have TB_CFG_REQUEST_ACTIVE\nbit set.",
"id": "GHSA-vpp5-35pq-5g47",
"modified": "2025-07-04T12:30:24Z",
"published": "2025-07-04T12:30:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38174"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0771bcbe2f6e5d5f263cf466efe571d2754a46da"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0a3011d47dbc92a33621861c423cb64833d7fe57"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0f73628e9da1ee39daf5f188190cdbaee5e0c98c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/2f62eda4d974c26bc595425eafd429067541f2c9"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5a057f261539720165d03d85024da2b52e67f63d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/85286e634ebbaf9c0fb1cdf580add2f33fc7628c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/cdb4feab2f39e75a66239e3a112beced279612a8"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e49e994cd83705f7ca30eda1e304abddfd96a37a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/eb2d5e794fb966b3ef8bde99eb8561446a53509f"
}
],
"schema_version": "1.4.0",
"severity": []
}
Sightings
| Author | Source | Type | Date |
|---|
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