vulnerability
Ubuntu: (CVE-2022-49298): linux vulnerability
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 6 | (AV:L/AC:L/Au:S/C:C/I:N/A:C) | 02/26/2025 | 03/03/2025 | 04/16/2025 |
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
Solution(s)
References
- CVE-2022-49298
- https://attackerkb.com/topics/CVE-2022-49298
- URL-https://git.kernel.org/linus/0458e5428e5e959d201a40ffe71d762a79ecedc4
- URL-https://git.kernel.org/stable/c/0458e5428e5e959d201a40ffe71d762a79ecedc4
- URL-https://git.kernel.org/stable/c/0b7371a22489cbb2e8e826ca03fb5ce92afb04fe
- URL-https://git.kernel.org/stable/c/277faa442fe0c59f418ac53f47a78e1266addd65
- URL-https://git.kernel.org/stable/c/52a0d88c328098b4e9fb8f2f3877fec0eff4104b
- URL-https://git.kernel.org/stable/c/70df04433fd351ba72bc635bd0b5fe443d9ac964
- URL-https://git.kernel.org/stable/c/76a964ad0ea8f2b10abd69a7532e174a28258283
- URL-https://git.kernel.org/stable/c/a6535d00a9d54ce1c2a8d86a85001ffb6844f9b2
- URL-https://git.kernel.org/stable/c/f36e754a1f0bafb9feeea63463de78080acb6de0
- URL-https://git.kernel.org/stable/c/ff727ab0b7d7a56b5ef281f12abd00c4b85894e9
- URL-https://www.cve.org/CVERecord?id=CVE-2022-49298
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