CVE-2022-50566

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> mtd: Fix device name leak when register device failed in add_mtd_device()<br /> <br /> There is a kmemleak when register device failed:<br /> unreferenced object 0xffff888101aab550 (size 8):<br /> comm "insmod", pid 3922, jiffies 4295277753 (age 925.408s)<br /> hex dump (first 8 bytes):<br /> 6d 74 64 30 00 88 ff ff mtd0....<br /> backtrace:<br /> [] __kmalloc_node_track_caller+0x4e/0x150<br /> [] kvasprintf+0xb0/0x130<br /> [] kobject_set_name_vargs+0x2f/0xb0<br /> [] dev_set_name+0xab/0xe0<br /> [] add_mtd_device+0x4bb/0x700<br /> [] mtd_device_parse_register+0x2ac/0x3f0<br /> [] 0xffffffffa0238457<br /> [] 0xffffffffa02a008f<br /> [] do_one_initcall+0x87/0x2a0<br /> [] do_init_module+0xdf/0x320<br /> [] load_module+0x2f98/0x3330<br /> [] __do_sys_finit_module+0x113/0x1b0<br /> [] do_syscall_64+0x35/0x80<br /> [] entry_SYSCALL_64_after_hwframe+0x46/0xb0<br /> <br /> If register device failed, should call put_device() to give up the<br /> reference.