CVE-2023-52670

In the Linux kernel, the following vulnerability has been resolved: rpmsg:
virtio: Free driver_override when rpmsg_remove() Free driver_override when
rpmsg_remove(), otherwise the following memory leak will occur:
unreferenced object 0xffff0000d55d7080 (size 128): comm “kworker/u8:2”, pid
56, jiffies 4294893188 (age 214.272s) hex dump (first 32 bytes): 72 70 6d
73 67 5f 6e 73 00 00 00 00 00 00 00 00 rpmsg_ns… 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 … backtrace:
[<000000009c94c9c1>] __kmem_cache_alloc_node+0x1f8/0x320
[<000000002300d89b>] __kmalloc_node_track_caller+0x44/0x70
[<00000000228a60c3>] kstrndup+0x4c/0x90 [<0000000077158695>]
driver_set_override+0xd0/0x164 [<000000003e9c4ea5>]
rpmsg_register_device_override+0x98/0x170 [<000000001c0c89a8>]
rpmsg_ns_register_device+0x24/0x30 [<000000008bbf8fa2>]
rpmsg_probe+0x2e0/0x3ec [<00000000e65a68df>] virtio_dev_probe+0x1c0/0x280
[<00000000443331cc>] really_probe+0xbc/0x2dc [<00000000391064b1>]
__driver_probe_device+0x78/0xe0 [<00000000a41c9a5b>]
driver_probe_device+0xd8/0x160 [<000000009c3bd5df>]
__device_attach_driver+0xb8/0x140 [<0000000043cd7614>]
bus_for_each_drv+0x7c/0xd4 [<000000003b929a36>] __device_attach+0x9c/0x19c
[<00000000a94e0ba8>] device_initial_probe+0x14/0x20 [<000000003c999637>]
bus_probe_device+0xa0/0xac