CVE-2022-50772

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> netdevsim: fix memory leak in nsim_bus_dev_new()<br /> <br /> If device_register() failed in nsim_bus_dev_new(), the value of reference<br /> in nsim_bus_dev-&gt;dev is 1. obj-&gt;name in nsim_bus_dev-&gt;dev will not be<br /> released.<br /> <br /> unreferenced object 0xffff88810352c480 (size 16):<br /> comm "echo", pid 5691, jiffies 4294945921 (age 133.270s)<br /> hex dump (first 16 bytes):<br /> 6e 65 74 64 65 76 73 69 6d 31 00 00 00 00 00 00 netdevsim1......<br /> backtrace:<br /> [] __kmalloc_node_track_caller+0x3a/0xb0<br /> [] kvasprintf+0xc3/0x160<br /> [] kvasprintf_const+0x55/0x180<br /> [] kobject_set_name_vargs+0x56/0x150<br /> [] dev_set_name+0xbb/0xf0<br /> [] device_add+0x1f8/0x1cb0<br /> [] new_device_store+0x3b6/0x5e0<br /> [] bus_attr_store+0x72/0xa0<br /> [] sysfs_kf_write+0x106/0x160<br /> [] kernfs_fop_write_iter+0x3a8/0x5a0<br /> [] vfs_write+0x8f0/0xc80<br /> [] ksys_write+0x106/0x210<br /> [] do_syscall_64+0x35/0x80<br /> [] entry_SYSCALL_64_after_hwframe+0x46/0xb0