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
Metrics
Affected Vendors & Products
References
History
Mon, 14 Apr 2025 20:30:00 +0000
Type | Values Removed | Values Added |
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First Time appeared |
Linux
Linux linux Kernel |
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Weaknesses | CWE-908 | |
CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
Vendors & Products |
Linux
Linux linux Kernel |
Thu, 27 Feb 2025 01:45:00 +0000
Type | Values Removed | Values Added |
---|---|---|
References |
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Metrics |
threat_severity
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cvssV3_1
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Wed, 26 Feb 2025 02:15:00 +0000
Type | Values Removed | Values Added |
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Description | 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 | |
Title | staging: rtl8712: fix uninit-value in r871xu_drv_init() | |
References |
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Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2025-02-26T02:01:27.111Z
Reserved: 2025-02-26T01:49:39.302Z
Link: CVE-2022-49298

No data.

Status : Analyzed
Published: 2025-02-26T07:01:06.630
Modified: 2025-04-14T20:08:32.443
Link: CVE-2022-49298
