CVE-2022-50331

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> wwan_hwsim: fix possible memory leak in wwan_hwsim_dev_new()<br /> <br /> Inject fault while probing module, if device_register() fails,<br /> but the refcount of kobject is not decreased to 0, the name<br /> allocated in dev_set_name() is leaked. Fix this by calling<br /> put_device(), so that name can be freed in callback function<br /> kobject_cleanup().<br /> <br /> unreferenced object 0xffff88810152ad20 (size 8):<br /> comm "modprobe", pid 252, jiffies 4294849206 (age 22.713s)<br /> hex dump (first 8 bytes):<br /> 68 77 73 69 6d 30 00 ff hwsim0..<br /> backtrace:<br /> [] __kmalloc_node_track_caller+0x44/0x1b0<br /> [] kvasprintf+0xb5/0x140<br /> [] kvasprintf_const+0x55/0x180<br /> [] kobject_set_name_vargs+0x56/0x150<br /> [] dev_set_name+0xab/0xe0