FKIE_CVE-2022-49298
Vulnerability from fkie_nvd - Published: 2025-02-26 07:01 - Updated: 2026-06-17 05:17
Severity
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5 (Medium) - CVSS:3.1/
Summary
In the Linux kernel, the following vulnerability has been resolved:
staging: rtl8712: fix uninit-value in r871xu_drv_init()
When 'tmpU1b' returns from r8712_read8(padapter, EE_9346CR) is 0,
'mac[6]' will not be initialized.
BUG: KMSAN: uninit-value in r871xu_drv_init+0x2d54/0x3070 drivers/staging/rtl8712/usb_intf.c:541
r871xu_drv_init+0x2d54/0x3070 drivers/staging/rtl8712/usb_intf.c:541
usb_probe_interface+0xf19/0x1600 drivers/usb/core/driver.c:396
really_probe+0x653/0x14b0 drivers/base/dd.c:596
__driver_probe_device+0x3e9/0x530 drivers/base/dd.c:752
driver_probe_device drivers/base/dd.c:782 [inline]
__device_attach_driver+0x79f/0x1120 drivers/base/dd.c:899
bus_for_each_drv+0x2d6/0x3f0 drivers/base/bus.c:427
__device_attach+0x593/0x8e0 drivers/base/dd.c:970
device_initial_probe+0x4a/0x60 drivers/base/dd.c:1017
bus_probe_device+0x17b/0x3e0 drivers/base/bus.c:487
device_add+0x1fff/0x26e0 drivers/base/core.c:3405
usb_set_configuration+0x37e9/0x3ed0 drivers/usb/core/message.c:2170
usb_generic_driver_probe+0x13c/0x300 drivers/usb/core/generic.c:238
usb_probe_device+0x309/0x570 drivers/usb/core/driver.c:293
really_probe+0x653/0x14b0 drivers/base/dd.c:596
__driver_probe_device+0x3e9/0x530 drivers/base/dd.c:752
driver_probe_device drivers/base/dd.c:782 [inline]
__device_attach_driver+0x79f/0x1120 drivers/base/dd.c:899
bus_for_each_drv+0x2d6/0x3f0 drivers/base/bus.c:427
__device_attach+0x593/0x8e0 drivers/base/dd.c:970
device_initial_probe+0x4a/0x60 drivers/base/dd.c:1017
bus_probe_device+0x17b/0x3e0 drivers/base/bus.c:487
device_add+0x1fff/0x26e0 drivers/base/core.c:3405
usb_new_device+0x1b8e/0x2950 drivers/usb/core/hub.c:2566
hub_port_connect drivers/usb/core/hub.c:5358 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5502 [inline]
port_event drivers/usb/core/hub.c:5660 [inline]
hub_event+0x58e3/0x89e0 drivers/usb/core/hub.c:5742
process_one_work+0xdb6/0x1820 kernel/workqueue.c:2307
worker_thread+0x10b3/0x21e0 kernel/workqueue.c:2454
kthread+0x3c7/0x500 kernel/kthread.c:377
ret_from_fork+0x1f/0x30
Local variable mac created at:
r871xu_drv_init+0x1771/0x3070 drivers/staging/rtl8712/usb_intf.c:394
usb_probe_interface+0xf19/0x1600 drivers/usb/core/driver.c:396
KMSAN: uninit-value in r871xu_drv_init
https://syzkaller.appspot.com/bug?id=3cd92b1d85428b128503bfa7a250294c9ae00bd8
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * |
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],
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],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
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"configurations": [
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"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: rtl8712: fix uninit-value in r871xu_drv_init()\n\nWhen \u0027tmpU1b\u0027 returns from r8712_read8(padapter, EE_9346CR) is 0,\n\u0027mac[6]\u0027 will not be initialized.\n\nBUG: KMSAN: uninit-value in r871xu_drv_init+0x2d54/0x3070 drivers/staging/rtl8712/usb_intf.c:541\n r871xu_drv_init+0x2d54/0x3070 drivers/staging/rtl8712/usb_intf.c:541\n usb_probe_interface+0xf19/0x1600 drivers/usb/core/driver.c:396\n really_probe+0x653/0x14b0 drivers/base/dd.c:596\n __driver_probe_device+0x3e9/0x530 drivers/base/dd.c:752\n driver_probe_device drivers/base/dd.c:782 [inline]\n __device_attach_driver+0x79f/0x1120 drivers/base/dd.c:899\n bus_for_each_drv+0x2d6/0x3f0 drivers/base/bus.c:427\n __device_attach+0x593/0x8e0 drivers/base/dd.c:970\n device_initial_probe+0x4a/0x60 drivers/base/dd.c:1017\n bus_probe_device+0x17b/0x3e0 drivers/base/bus.c:487\n device_add+0x1fff/0x26e0 drivers/base/core.c:3405\n usb_set_configuration+0x37e9/0x3ed0 drivers/usb/core/message.c:2170\n usb_generic_driver_probe+0x13c/0x300 drivers/usb/core/generic.c:238\n usb_probe_device+0x309/0x570 drivers/usb/core/driver.c:293\n really_probe+0x653/0x14b0 drivers/base/dd.c:596\n __driver_probe_device+0x3e9/0x530 drivers/base/dd.c:752\n driver_probe_device drivers/base/dd.c:782 [inline]\n __device_attach_driver+0x79f/0x1120 drivers/base/dd.c:899\n bus_for_each_drv+0x2d6/0x3f0 drivers/base/bus.c:427\n __device_attach+0x593/0x8e0 drivers/base/dd.c:970\n device_initial_probe+0x4a/0x60 drivers/base/dd.c:1017\n bus_probe_device+0x17b/0x3e0 drivers/base/bus.c:487\n device_add+0x1fff/0x26e0 drivers/base/core.c:3405\n usb_new_device+0x1b8e/0x2950 drivers/usb/core/hub.c:2566\n hub_port_connect drivers/usb/core/hub.c:5358 [inline]\n hub_port_connect_change drivers/usb/core/hub.c:5502 [inline]\n port_event drivers/usb/core/hub.c:5660 [inline]\n hub_event+0x58e3/0x89e0 drivers/usb/core/hub.c:5742\n process_one_work+0xdb6/0x1820 kernel/workqueue.c:2307\n worker_thread+0x10b3/0x21e0 kernel/workqueue.c:2454\n kthread+0x3c7/0x500 kernel/kthread.c:377\n ret_from_fork+0x1f/0x30\n\nLocal variable mac created at:\n r871xu_drv_init+0x1771/0x3070 drivers/staging/rtl8712/usb_intf.c:394\n usb_probe_interface+0xf19/0x1600 drivers/usb/core/driver.c:396\n\nKMSAN: uninit-value in r871xu_drv_init\nhttps://syzkaller.appspot.com/bug?id=3cd92b1d85428b128503bfa7a250294c9ae00bd8"
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: staging: rtl8712: se corrige uninit-value en r871xu_drv_init(). Cuando \u0027tmpU1b\u0027 retorna de r8712_read8(padapter, EE_9346CR) como 0, \u0027mac[6]\u0027 no se inicializar\u00e1. ERROR: KMSAN: valor no inicializado en r871xu_drv_init+0x2d54/0x3070 drivers/staging/rtl8712/usb_intf.c:541 r871xu_drv_init+0x2d54/0x3070 drivers/staging/rtl8712/usb_intf.c:541 usb_probe_interface+0xf19/0x1600 drivers/usb/core/driver.c:396 really_probe+0x653/0x14b0 drivers/base/dd.c:596 __driver_probe_device+0x3e9/0x530 drivers/base/dd.c:752 driver_probe_device drivers/base/dd.c:782 [en l\u00ednea] __device_attach_driver+0x79f/0x1120 drivers/base/dd.c:899 bus_for_each_drv+0x2d6/0x3f0 drivers/base/bus.c:427 __device_attach+0x593/0x8e0 drivers/base/dd.c:970 device_initial_probe+0x4a/0x60 drivers/base/dd.c:1017 bus_probe_device+0x17b/0x3e0 drivers/base/bus.c:487 device_add+0x1fff/0x26e0 drivers/base/core.c:3405 usb_set_configuration+0x37e9/0x3ed0 drivers/usb/core/message.c:2170 usb_generic_driver_probe+0x13c/0x300 drivers/usb/core/generic.c:238 usb_probe_device+0x309/0x570 drivers/usb/core/driver.c:293 really_probe+0x653/0x14b0 drivers/base/dd.c:596 __driver_probe_device+0x3e9/0x530 drivers/base/dd.c:752 driver_probe_device drivers/base/dd.c:782 [en l\u00ednea] __device_attach_driver+0x79f/0x1120 drivers/base/dd.c:899 bus_for_each_drv+0x2d6/0x3f0 drivers/base/bus.c:427 __device_attach+0x593/0x8e0 drivers/base/dd.c:970 device_initial_probe+0x4a/0x60 drivers/base/dd.c:1017 bus_probe_device+0x17b/0x3e0 drivers/base/bus.c:487 device_add+0x1fff/0x26e0 drivers/base/core.c:3405 usb_new_device+0x1b8e/0x2950 drivers/usb/core/hub.c:2566 hub_port_connect drivers/usb/core/hub.c:5358 [en l\u00ednea] hub_port_connect_change drivers/usb/core/hub.c:5502 [en l\u00ednea] port_event drivers/usb/core/hub.c:5660 [en l\u00ednea] hub_event+0x58e3/0x89e0 drivers/usb/core/hub.c:5742 process_one_work+0xdb6/0x1820 kernel/workqueue.c:2307 worker_thread+0x10b3/0x21e0 kernel/workqueue.c:2454 kthread+0x3c7/0x500 kernel/kthread.c:377 ret_from_fork+0x1f/0x30 Variable local mac creada en: r871xu_drv_init+0x1771/0x3070 drivers/staging/rtl8712/usb_intf.c:394 usb_probe_interface+0xf19/0x1600 drivers/usb/core/driver.c:396 KMSAN: valor no inicializado en r871xu_drv_init https://syzkaller.appspot.com/bug?id=3cd92b1d85428b128503bfa7a250294c9ae00bd8"
}
],
"id": "CVE-2022-49298",
"lastModified": "2026-06-17T05:17:38.277",
"metrics": {
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{
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"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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"confidentialityImpact": "NONE",
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"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
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"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"options": [
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{
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{
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],
"role": "CISA Coordinator",
"timestamp": "2025-10-01T19:44:56.175459Z",
"version": "2.0.3"
}
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]
},
"published": "2025-02-26T07:01:06.630",
"references": [
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"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-908"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
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"value": "CWE-908"
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],
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
]
}
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
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- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.