fkie_cve-2025-38174
Vulnerability from fkie_nvd
Published
2025-07-04 11:15
Modified
2025-07-08 16:18
Severity ?
Summary
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:
<TASK>
? 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.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "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."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: thunderbolt: no desencolar dos veces una solicitud de configuraci\u00f3n Algunos de nuestros dispositivos fallan en tb_cfg_request_dequeue(): error de protecci\u00f3n general, probablemente para la direcci\u00f3n no can\u00f3nica 0xdead000000000122 CPU: 6 PID: 91007 Comm: kworker/6:2 Tainted: GUW 6.6.65 RIP: 0010:tb_cfg_request_dequeue+0x2d/0xa0 Rastreo de llamadas: ? 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 Las circunstancias no est\u00e1n claras, sin embargo, la teor\u00eda es que tb_cfg_request_work() se puede programar dos veces para una solicitud: la primera vez a trav\u00e9s de frame.callback desde ring_work() y la segunda vez desde tb_cfg_request(). En ambas ocasiones, los kworkers ejecutar\u00e1n tb_cfg_request_dequeue(), lo que resulta en un doble list_del() desde ctl-\u0026gt;request_queue (la deferencia de envenenamiento de lista lo insin\u00faa: 0xdead000000000122). No saque de la cola las solicitudes que no tengan establecido el bit TB_CFG_REQUEST_ACTIVE."
}
],
"id": "CVE-2025-38174",
"lastModified": "2025-07-08T16:18:53.607",
"metrics": {},
"published": "2025-07-04T11:15:51.283",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/0771bcbe2f6e5d5f263cf466efe571d2754a46da"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/0a3011d47dbc92a33621861c423cb64833d7fe57"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/0f73628e9da1ee39daf5f188190cdbaee5e0c98c"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/2f62eda4d974c26bc595425eafd429067541f2c9"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/5a057f261539720165d03d85024da2b52e67f63d"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/85286e634ebbaf9c0fb1cdf580add2f33fc7628c"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/cdb4feab2f39e75a66239e3a112beced279612a8"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/e49e994cd83705f7ca30eda1e304abddfd96a37a"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/eb2d5e794fb966b3ef8bde99eb8561446a53509f"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Awaiting Analysis"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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