syz_io_uring_submit(0x0, 0x0, &(0x7f0000000000)=@IORING_OP_SENDMSG={0x9, 0x0, 0x0, 0xffffffffffffffff, 0x0, &(0x7f0000000900)={&(0x7f0000000200)=@l2tp6={0xa, 0x0, 0x0, @mcast2}, 0x80, &(0x7f0000000840)=[{&(0x7f0000000300)="a63a", 0x2}, {0x0}, {0x0}], 0x33}, 0x0, 0x4008000}, 0x0)
BUG: leak checking failed