CVE-2022-49298

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> staging: rtl8712: fix uninit-value in r871xu_drv_init()<br /> <br /> When &amp;#39;tmpU1b&amp;#39; returns from r8712_read8(padapter, EE_9346CR) is 0,<br /> &amp;#39;mac[6]&amp;#39; will not be initialized.<br /> <br /> BUG: KMSAN: uninit-value in r871xu_drv_init+0x2d54/0x3070 drivers/staging/rtl8712/usb_intf.c:541<br /> r871xu_drv_init+0x2d54/0x3070 drivers/staging/rtl8712/usb_intf.c:541<br /> usb_probe_interface+0xf19/0x1600 drivers/usb/core/driver.c:396<br /> really_probe+0x653/0x14b0 drivers/base/dd.c:596<br /> __driver_probe_device+0x3e9/0x530 drivers/base/dd.c:752<br /> driver_probe_device drivers/base/dd.c:782 [inline]<br /> __device_attach_driver+0x79f/0x1120 drivers/base/dd.c:899<br /> bus_for_each_drv+0x2d6/0x3f0 drivers/base/bus.c:427<br /> __device_attach+0x593/0x8e0 drivers/base/dd.c:970<br /> device_initial_probe+0x4a/0x60 drivers/base/dd.c:1017<br /> bus_probe_device+0x17b/0x3e0 drivers/base/bus.c:487<br /> device_add+0x1fff/0x26e0 drivers/base/core.c:3405<br /> usb_set_configuration+0x37e9/0x3ed0 drivers/usb/core/message.c:2170<br /> usb_generic_driver_probe+0x13c/0x300 drivers/usb/core/generic.c:238<br /> usb_probe_device+0x309/0x570 drivers/usb/core/driver.c:293<br /> really_probe+0x653/0x14b0 drivers/base/dd.c:596<br /> __driver_probe_device+0x3e9/0x530 drivers/base/dd.c:752<br /> driver_probe_device drivers/base/dd.c:782 [inline]<br /> __device_attach_driver+0x79f/0x1120 drivers/base/dd.c:899<br /> bus_for_each_drv+0x2d6/0x3f0 drivers/base/bus.c:427<br /> __device_attach+0x593/0x8e0 drivers/base/dd.c:970<br /> device_initial_probe+0x4a/0x60 drivers/base/dd.c:1017<br /> bus_probe_device+0x17b/0x3e0 drivers/base/bus.c:487<br /> device_add+0x1fff/0x26e0 drivers/base/core.c:3405<br /> usb_new_device+0x1b8e/0x2950 drivers/usb/core/hub.c:2566<br /> hub_port_connect drivers/usb/core/hub.c:5358 [inline]<br /> hub_port_connect_change drivers/usb/core/hub.c:5502 [inline]<br /> port_event drivers/usb/core/hub.c:5660 [inline]<br /> hub_event+0x58e3/0x89e0 drivers/usb/core/hub.c:5742<br /> process_one_work+0xdb6/0x1820 kernel/workqueue.c:2307<br /> worker_thread+0x10b3/0x21e0 kernel/workqueue.c:2454<br /> kthread+0x3c7/0x500 kernel/kthread.c:377<br /> ret_from_fork+0x1f/0x30<br /> <br /> Local variable mac created at:<br /> r871xu_drv_init+0x1771/0x3070 drivers/staging/rtl8712/usb_intf.c:394<br /> usb_probe_interface+0xf19/0x1600 drivers/usb/core/driver.c:396<br /> <br /> KMSAN: uninit-value in r871xu_drv_init<br /> https://syzkaller.appspot.com/bug?id=3cd92b1d85428b128503bfa7a250294c9ae00bd8